ELTEX TAU-4M.IP Operation Manual
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ELTEX TAU-4M.IP Operation Manual

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TAU-4M.IP
Operation Manual
Firmware version 2.3.0
VoIP Gateway
IP address:
http://192.168.1.1
Username:
admin
Password:
password
https://eltex-co.com/support/downloads/

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Summary of Contents for ELTEX TAU-4M.IP

  • Page 1 TAU-4M.IP Operation Manual Firmware version 2.3.0 VoIP Gateway IP address: http://192.168.1.1 Username: admin Password: password https://eltex-co.com/support/downloads/...
  • Page 2 Document version Issue data Revisions Version 1.2 31.01.2020 Updated according to firmware version 2.3.0 Version 1.1 28.05.2018 Updated according to firmware version 2.1.0 Version 1.0 15.01.2018 First issue Firmware version Firmware version: 2.3.0 2.3.0.53 Web-interface version: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 3 NOTES AND WARNINGS Notes contain important information, tips, or recommendations on device operation and setup. Warnings inform users about hazardous conditions which may cause injuries or device damage and may lead to the device malfunctioning or data loss. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 4: Table Of Contents

    3.3.1 Local conference ........................111 3.3.2 Remote conference ......................113 4 CONNECTION ESTABLISHMENT ALGORITHMS ..................114 4.1 Algorithm of a Successful Call via SIP Protocol ................114 4.2 Call Algorithm Involving SIP Proxy Server ..................115 ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 5 6 SYSTEM RECOVERY AFTER A FIRMWARE UPDATE FAILURE ..............120 APPENDIX A. CALCULATION OF PHONE LINE LENGTH ................121 APPENDIX B. RUNNING USER-DEFINED SCRIPT UPON SYSTEM STARTUP........... 122 APPENDIX C. DHCP CLIENTS CONFIGURATION IN MULTISERVICE MODE ........... 123 ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 6: Introduction

    ____________________________________________________________________________________ INTRODUCTION Today, VoIP is one of the most rapidly evolving telecommunication services. TAU-4M.IP series gateways (hereinafter the "device") are designed to provide VoIP services to the network clients. TAU-4M.IP VoIP gateway allows connecting analogue phones to packet-based data networks accessible via Ethernet.

  • Page 7: Product Description

    PRODUCT DESCRIPTION Purpose TAU-4M.IP is a high-performance VoIP gateway with the full set of features that allow users to take advantage of VoIP functionality. TAU-4M.IP gateway allows connecting an analogue phone or a fax modem to IP networks. With a built-in router, the device enables connection of local network equipment to a broadband access network.
  • Page 8 Flexible dial plan;  Firmware update via web interface;  DHCP-based auto provisioning support;  TR-069;  Remote monitoring, configuration and setup: web-interface, Telnet. Figure1 shows TAU-4M.IP connection diagram. Figure 1 – TAU- 4M.IP operation diagram ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 9: Device Design And Operating Principle

    ____________________________________________________________________________________ Device Design and Operating Principle TAU-4M.IP terminal consists of the following subsystems:  Controller that includes: – Realtek RTL8972C highly-integrated System-on-a-Chip (SoC), including a CPU, 100 Mbit switch with a built-in PHY, hardware L2/L3/L4 acceleration, USB 2.0 ports, PCI-E controller and 8 PCM channels for VoIP applications;...
  • Page 10 Control block based on Linux operating system monitors operation of all the other blocks and the device subsystems and manages their interaction. Fig 3 shows TAU-4M.IP functional diagram. Figure 3 – TAU- 4M.IP functional diagram ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 11: Main Specifications

    12V DC, 2.0 А. Power consumption up to 12.5 W (max. current consumption is 1.1A) Operation temperature range from +5 to +40°С Relative humidity at 25°С up to 80% Dimensions 187х120х32.5 mm Weight 0.25 kg ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 12: Design

    The TAU-4M.IP top panel appearance is shown in Figure 4. Figure 4 - TAU-4M.IP top panel appearance Connectors, LEDs and controls located on TAU-4M.IP top panel are described in Table 2: Table 2 – Description of LEDs and controls located on the front panel...

  • Page 13: Rear Panel Of The Device

    10/100BASE-T Ethernet (RJ-45) port for external network connection Light indication WAN, LAN, Phone, Power indicators located on TAU-4M.IP top panel show the device current status. Table 4 lists possible states of the LEDs. Table 4 - Light indication of TAU-4M.IP states...

  • Page 14: Reset To Factory Settings

    Device will be rebooted automatically. Factory settings: DHCP client is launched on WAN interface, LAN interface address—192.168.1.1, subnet mask—255.255.255.0; username/password for web interface access: admin/password. Delivery Package TAU-4M.IP standard delivery package includes:  Multi-purpose subscriber terminal:  220/12V, 2A power adapter;...

  • Page 15: Device Management Via Web Configurator

    Viewer (spectator, default password: viewer) may only view full device configuration without editing privileges; may access full device status monitoring. When you click the Logout button, the current user session will be terminated; login window will be displayed: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 16: Web Interface Operation Modes

    To change the access, you should specify the corresponding username and password and click the Log in button. WEB interface operation modes TAU-4M.IP WEB interface can operate in three modes:  Monitoring – system monitoring mode – allows viewing device operation information: network connection availability, phone port state, amount of data received/transferred via network interfaces, etc.

  • Page 17: Applying And Discarding Changes Made To Configuration

    After you click ‘Apply’, you will not be able to restore previous settings. Cancel button in the quick configuration menu and the advanced settings menu will appear as follows: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 18: Quick Configuration' Menu

    Bridge — bridge mode is established between WAN and LAN interfaces: data is transmitted transparently from LAN to WAN and back.  Protocol — select the protocol that will be used for device WAN interface connection to provider network: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 19  User name – user name for authorization on PPP server;  Password – password for authorization on PPP server;  Service-Name – Service-Name tag value in PADI message for PPPoE connection (this parameter is optional, and configured only on the provider's request); ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 20 PPTP and L2TP functionality differs. L2TP may be used not only in IP networks, service messages for tunnel creation and data transfer use the same format and protocols. PPTP may be used only in IP networks, it requires a dedicated TCP connection for tunnel ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 21: Voip

    DHCP option 15 or specified manually. A manually specified domain takes precedence over the DHCP configuration. To apply a new configuration and store settings into the flash memory, click . To discard changes click Disable sender address translation for correct IPSec operation. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 22: Iptv

    For IPTV operation, you should specify settings in IPTV section. To specify additional parameters, go to advanced settings mode by clicking the more link.  Enable IPTV – when selected, enable IPTV signal transmission from TAU-4M.IP WAN interface (from the provider network) to the devices connected to LAN interface. ...

  • Page 23: Advanced Settings

    – Discard — discard changes (effective only until 'Apply' button is clicked). 8. Informational field showing firmware version and WEB interface version. 2.6.2 'Network' menu In the 'Network' menu, you may configure the device network settings. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 24 Speed and duplex – specify data rate and duplex mode for WAN Ethernet port of the gateway: – Auto – automatic speed and duplex negotiations; – 100 Half – 100Mbps data transfer rate with half-duplex mode is supported; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 25  67 – firmware file name (to download via TFTP from the server specified in Option 66);  82 – DHCP Relay agent information;  120 – SIP server outbound;  121 – classless static routes; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 26  Use secondary access for VoIP – this option is available, if there are no dedicated interfaces for VoIP service (Use Internet settings checkbox is selected). When the checkbox is not selected (default value), VoIP service uses PPP interface for its operation; when selected, secondary access interface (IPoE); ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 27  LCP echo failure – the number of missed LCP requests after which a L2TP session is terminated;  Secondary access — type of access to local network resources and L2TP server. You may select 2 options: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 28 When 'Static' type is selected, the following parameters will be available for editing:  IP address – specify device WAN interface IP address in the provider network;  Netmask — external subnet mask; Disable sender address translation for correct IPSec operation. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 29 When PPPoE is selected in bridge mode, the connection type will always be AlwaysOn.  Secondary access — type access local network resources. You may select 2 options: – DHCP – dynamic access when IP address and all other required parameters are obtained via DHCP; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 30 MTU – maximum block size for data transmitted via the network (1492 is recommended value). ‘By Default’ button allows you to fill in the service provider settings with preconfigured values from the device memory, to free the user from searching for them in the Internet. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 31 Wireless – channel via a mobile network through the wireless USB modem. Wired connection settings: The settings are identical 'Wireless connection' with 'Router' mode selected. Wireless connection settings: The settings are identical with settings for '3G/4G USB modem' connection method. Checking the Access to the Internet: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 32 IPSec is a set of protocols used for protection of data transmitted via Internet Protocol that enables authentication, integrity check and/or encryption of IP packets. IPsec also includes secure Internet Key Exchange protocols. In the current firmware version, you may only access the device management interfaces (Web, Telnet, SSH) using IPSec. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 33  Pre-shared Key – a secret key used by authentication algorithm in phase 1. A string from 8 to 63 characters long.  IKE Authentication algorithm – select an authentication algorithm from the list: MD5, SHA1; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 34 DSCP – mechanism of classification, traffic control and QoS support through priorities; – 802.1p – marker (another name is CoS (Class of Service)), assigned to the outgoing IP packets from this interface. It may take values from 0 (the lowest priority) to 7 (the highest priority). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 35 WEB configurator. The option may be helpful, when your ISP (Internet service provider) network employs MAC address tethering. In this case, if you are planning to use TAU-4M.IP as a router, MAC address of your computer (previously connected to the Internet) should be assigned to the WAN interface of the device.
  • Page 36 Name – current static binding name.  MAC address – specify a static МАС address. Format: XX:XX:XX:XX:XX:XX, you may select connected device addresses from the pop-up menu.  IP address – define a static IP address for the specific MAC address. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 37 2.6.2.6 'NAT and port forwarding' submenu In the 'NAT and port forwarding' submenu, you may configure port forwarding from WAN interface to LAN interface. This submenu is available only when the Internet service is configured in the router mode. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 38 WAN IP address – source IP address that sends packets into external networks falling under this rule;  Destination ports of WAN – recipient TCP/UDP port values that will be used for packet translation into LAN (a single port or port range delimited by '-' is permitted). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 39 To add a new NAT rule, click the 'Add' button and fill in the following fields in the ‘Add a new rule’ window:  Name – rule name;  Traffic type – select the traffic type that will fall under this rule: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 40 Click the 'Apply' button to add a new rule. To discard changes click the 'Cancel' button. To delete the record from the list, select the checkbox next to the respective record and click 'Delete'. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 41 If the option is disabled, the data transmission rate will be limited by a specified value.  Speed limit, kbps – maximum data stream rate for the device with the specified MAC address (0 kbps — is equivalent to the absence of a data rate limit). Limitations on URL addresses ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 42 You may enter up to 30 client MAC addresses which may access the device in accordance with the specified filtering mode. To add a new client to the list, click the 'Add' button and enter its MAC address. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 43 (to a computer or router) with a dynamic IP address. Dynamic DNS is frequently used in local networks, where clients are obtaining IP addresses through DHCP and then registering their names on local DNS-server. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 44 To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes click the 'Cancel' button. 2.6.2.12 ‘SNMP’ submenu TAU-4M.IP software allows monitoring status of the device and configuring it via SNMP. In SNMP submenu, you can configure settings of SNMP agent. Device supports SNMPv1, SNMPv2c protocol versions. ...

  • Page 45: Voip' Menu

    In the 'VoIP' menu, you may configure VoIP (Voice over IP): SIP configuration, FXS interface configuration, installation of codecs, dialplan, fax and modem data transfer methods. 2.6.3.1 'Network settings' submenu In the 'Network settings' submenu, you may specify custom network settings for VoIP service are specified. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 46 The list of DHCP options used on each network interface (Internet, VoIP, Management) can be set manually. You will find the setup information in the Appendix B. In the firmware version 1.9.1, you may specify custom settings for VoIP service only in the dedicated VLAN. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 47 DSCP – DSCP field value of IP packet header for voice traffic with the specified source port. To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes click the 'Cancel' button. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 48 In the 'Line settings' submenu, you may configure the phone ports Phone1, Phone2, Phone 3, Phone 4. To edit settings, press and hold the left mouse button on the link with the number of adjustable line and fill the following fields in the appeared ‘Edit line’ window: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 49 Attended calltransfer – flash will be processed locally by the device (call transfer will be performed when the connection with the third party is established). For the 'Attended call transfer' detailed operation algorithm, see Section 3.13.1Call Transfer; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 50 CFNA timeout, s – time interval that will be used for call forwarding when there is no answer from the subscriber, in seconds;  DND (Do not disturb) – when selected, temporary restriction is placed for incoming calls (DND service). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 51 0.1dB. The range of values is between -200 to 200dB;  Speak voice level, dB – configuration of voice signal level directed towards a subscriber. The range of values is between -31 to 31 dB; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 52 Various SIP profiles usage is needed when various subscriber ports operating via various connection directions (SIP servers). At this time, only one SIP profile can be assigned to every subscriber port (configuration in the 'VoIP'->'Line settings' menu). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 53 SIP-proxy is lost, querying of the subsequent SIP-proxies will be continued using the algorithm described above. If the last redundant SIP-proxy is not available, the querying will continue in a cycle, beginning from the main SIP-proxy. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 54 5060). You may specify IP address as well as the domain name. Registration on the redundant server is enabled when Registration server field is selected. To delete the redundant SIP proxy, select the checkbox next to the respective address and click 'Remove'. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 55 Public IP address - this parameter is used as device's external address while working behind NAT (behind gateway). External (WAN) gateway interface (NAT) address behind which TAU-4M.IP is set is used as public address. Wherein it is needed to traverse corresponding SIP and RTP ports, used by device, on the gateway;...
  • Page 56 – 183 Progress with SDP - 183+SDP reply is sending to caller equipment; used for frequency path forwarding to callee reply. In this case TAU-4M.IP will remote send ringback tone to caller. ...
  • Page 57 Implicit - Allow management of certain types of services by the IMS (IP Multimedia Subsystem) server. In this case enabling the '3-way Conference' (works only by the algorithm RFC4579), 'Call Hold', 'Call Waiting', 'Hot line' (regardless of whether they are ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 58 Example: if service name has 'three-party-conference' value and it is needed to perform a call to number 30001 after 6 seconds after onhook, activation command will appear as: <hot-line-service> <addr>30001</addr> <timeout>6</timeout> </hot-line-service> ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 59 Example: (810X.) - international number with any digits amount. Settings that affect dialplan processing:  Interdigit Long Timer ('L' digit in dialplan entry) - next digit input waiting time, if there are no patterns that appropriate for dialed combination; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 60 7-digit number is entered. – Example 3: (0[123] | 8 [2-9]xx [2-9]xxxxxx) - the emergency services and some intercity numbers dialling. – Example 4: (S0 <:82125551234>) - specified number speed dial, 'Hotline' mode analogue on another gateways. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 61 G.711 is PCM codec that does not employ a compression of voice data. This codec must be supported by all VoIP equipment manufacturers. G.711A and G.711U codecs differ from each other in encoding law (А-law is a ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 62 In this case they must be divided by symbol ';' - (param1:subparam1,subparam2;param2:subparam1,subparam2). Allowed subparamX subparameters values: g711a, g711u, g729, g723. Allowed param1 - codecs and param2 - rfc2833_PT subparameters values: Example: ([23]xxx(codecs:g729; rfc2833_PT:96)|8x.(codecs:g711a;g711u)). Jitter Buffer ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 63 Fax codec 1...3 - allows you to select codecs and an order of their usage. Codec with the highest priority should be placed in 'Fax codec 1' field. For processing it is necessary to point at least one codec: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 64 DTMF Transfer–DTMF tone transmission method: – Inband; – RFC2833–according to RFC2833 recommendation, as a dedicated payload in RTP voice packets; – SIP Info - transmission of the messages via SIP in INFO queries.  Flash transfer - flash transfer type: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 65 Receiving Period - RTCP message receiving period is measured in sending interval units; if receiving period expires and there is no any RTCP packet received from oncoming side - TAU-4M.IP cuts the connection off. – RTCP-XR – when checked, sending 'RTCP Extended Reports' control packets according to RFC 3611.
  • Page 66 To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes, click the 'Cancel' button. 2.6.3.5 'Dialplan Profiles' submenu In this submenu you can set call profiles for using in different directions. You can configure up to 4 dialplan profiles. Dialplan profile editing ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 67 G.726 – 24–use G.726 codec with 24 kbps speed – G.726 – 32–use G.726-32 codec with 32 kbps speed – G.722 – use G.722 codec  Packet Time - voice milliseconds amount in one RTP packet (for codecs G.711A, G.729, G.723 and G.726). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 68 Dispersion time, ms - parameter, that allows to fight with echo, caused by voice signal dispersion. Parameter values are changing in the range from 2 to 128 ms.  Max Call Number - this parameter allows to restrict simultaneous calls on one direction amount. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 69  Group name - Call group name;  Status - call group state: enabled, disabled;  SIP Profile - SIP profile, used by call group; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 70  Call Queue Size, s - setting allows restricting max missed calls amount in call group queue. Received call do not set in queue if there a free ports in group; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 71 When subscriber dials the pickup code when there are no incoming calls to a group number or phone port, ‘Busy’ tone will be transmitted to subscriber. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 72 – Call waiting - service allows a subscriber to get the notification about new incoming call in call state. Subscriber can accept, decline or ignore waiting call; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 73 100 ms, min value is 200 ms, max is 8000 To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes click the 'Cancel' button. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 74: Iptv' Menu

    2.6.4.1 The 'IPTV' submenu In the 'IPTV' submenu you can configure the IPTV service.  Enable IPTV – when selected, enables IPTV signal transmission from TAU-4M.IP WAN interface (from the provider network) to the devices connected to LAN interface. ____________________________________________________________________________________...

  • Page 75: System' Menu

    IPTV streams being broadcast by TAU-4M.IP. For example, if TAU-4M.IP address on LAN interface is 192.168.0.1, proxy server port is 2354, and the desired channel 227.50.50.100 is being broadcast to UDP port 1234, you should specify the...
  • Page 76 NTP Server - Time synchronization server IP address/domain name. It is possible to input server address manually or select it from the list. To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes click the 'Cancel' button. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 77 ____________________________________________________________________________________ 2.6.5.2 'Access' submenu In the 'Access' submenu, you can configure the access to device via WEB interface, Telnet and SSH and also access to the USB storages via FTP. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 78 In this section you can configure the access to VoIP service interface (VoIP service interface is configuring in the 'VoIP->Network Settings' section) via WEB (HTTP and HTTPS) and also via Telnet and SSH protocols. To grant the access by any of specified protocols set the corresponding flags. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 79 System manager is responsible for device configuration according to configuration file.  Configuration manager is responsible for operations with configuration file (reading and writing to the configuration file from different sources) and device monitoring information gathering. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 80 (protocol configuration is carried out below); – Console - messages are output to device console (connection via COM port adapter is needed); – Telnet - messages are output to the telnet session; for this create the connection via telnet protocol first. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 81 Syslog Server Port - incoming Syslog server messages port (default is 514, needed for 'Server' mode);  File Name - log storage file name in Syslog format (needed for ' Local File' mode);  File Size, KB - log file max size (needed for 'Local File' mode). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 82 User Password - type unprivileged user password and confirmation in corresponding fields;  Viewer Password - type viewer password and confirmation in corresponding fields; To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes click the 'Cancel' button. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 83 'Upload' button. Uploaded configuration will be applied automatically without device rebooting. Reset to default configuration To reset the device to factory default settings click the 'Reset' button. 2.6.5.6 'Firmware Upgrade' submenu The 'Firmware Upgrade' submenu is intended for upgrading the device's firmware. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 84 Internet access is required for the update check function to work. You can also update the device firmware manually by downloading the firmware file from http://eltex- co.com/support/downloads and saving it to your computer. To do this, click the 'Select file' button in the Software update file field and specify the path to the control program file in .tar.gz format.
  • Page 85 Periodically - automatic update of the configuration or firmware of the device will be performed at a specified time interval; – Scheduled - the device will automatically update its configuration or firmware at a specified time, on specified days of the week. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 86 , <port> is Acs server port, the default port is 80). In the second case, the client will use the secure HTTPS protocol to exchange information with the ACS server. Eltex ACS server defaults to port 9595 for communication;...
  • Page 87 (software version, model, serial number, etc.), complete configuration file downloading/uploading, remote device restart (TR-069, TR-098, TR-104 specifications are supported). To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes click the 'Cancel' button. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 88 If you are unable to obtain DNS server addresses from the provider, you may specify them manually using 'Primary DNS' and 'Secondary DNS' fields. Manually defined addresses will have a priority over DNS addresses obtained via DHCP. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 89 You will find the setup information in the Appendix B. To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes click the 'Cancel' button. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 90 Not valid after — certificate end date;  Subject — information about the certificate recipient (common name, organization, subject alternative name);  Name of the certification authority — information about the certification authority (common name, organization). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 91 Not valid before - certificate start date;  Not valid after - certificate end date;  Subject - information about the certificate receiver (Common Name, Organization, Additional domain addresses);  Name of the certification authority - authorization center information (Common name, Organization). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 92 Subject — information about the certificate recipient (common name, organization, subject alternative name);  Name of the certification authority — information about the certification authority. 2.6.5.11 'Advanced' submenu In the 'Advanced' submenu you can enable UPnP. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 93 End VLAN ID - the final value of the VLAN identifier in the reserved range. This setting is not editable and is calculated automatically. To apply a new configuration and store settings into the non-volatile memory, click the 'Apply' button. To discard changes click the 'Cancel' button. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 94: System Monitoring

    When Automatically Switch to Redundant Channel connection method is selected, the following fields will be available for configuration:  Connection Availability - shows ping server availability through this connection;  Activity - shows that interface is used for user data transmission. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 95: Voip' Submenu

    Ok - registration on SIP server is successful.  Expires In - time before the expiration of registration of the subscriber port on SIP server;  Server Address - address of the server where the subscriber line was last registered; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 96 Resistance A (TIP) - Ground;  Resistance B (RING) - Ground;  Capacity A (TIP) - B (RING);  Capacity A (TIP) - Ground;  Capacity B (RING) - Ground;  Telephone set — information on telephone availability. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 97 State - call group state: enabled or disabled;  Phone – phone number assigned to the call group;  Line List - line (ports) list that includes call group.  Registration - state of group phone number registration on proxy server: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 98: Ethernet Ports' Submenu

    In the 'Ethernet Ports' submenu, you can view the status of the device Ethernet ports. State of Ethernet Ports  Port – port name: – WAN - external network port; – LAN - local network port.  Connection - state of connection to this port: ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 99: Dhcp' Submenu

    To get current information about the DHCP clients, click the 'Refresh' button. 2.7.5 'ARP' submenu In the 'ARP' submenu, you can view the device ARP table. The ARP table contains information about the alignment between the IP and MAC addresses of neighboring network devices. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 100: Device' Submenu

    Serial Number - device serial number, set by manufacturer;  System Time - current time and date, set in the system;  Uptime - the time since the last time the device was switched on or rebooted. 2.7.7 'CPU' submenu ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 101: Conntrack' Submenu

    Shown Connections Count - number of connections shown in WEB interface. In order not to reduce the performance of the WEB-interface, the maximum number of shown connections is limited to 1024. All another connections you can view in device's command console (command cat /proc/net/nf_conntrack). ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 102: Routes' Submenu

    – А - points to a buffered route to which an entry in the ARP table corresponds. – С - indicates that the source of the route is the core routing buffer; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 103: Call History' Submenu

     Talk duration - the duration of the conversation in seconds;  State – transient state or reason for ending a call, the description becomes available when you hover the cursor over a call status record; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 104: Diagnostics' Submenu

    The submenu can be used to check the accessibility of a node in the network and determine a data transfer route. Network utilities:  Ping — the utility used to test hosts on TCP/IP networks for reachability.  Traceroute — the utility used to determine the route according to which packets move. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 105: Configuration Example

    PC.  In the 'Internet' tile you can configure external connection. If TAU-4M.IP will be used as a router - select the value of the 'Work mode' field - the router in the 'Internet' tile. In the 'Protocol' field, select the protocol used by your internet service provider and enter the required data according to the provider’s instructions.
  • Page 106 If TAU-4M.IP will be used as a 2-port switch - select the value of the 'Work mode' field - the bridge in the 'Internet' tile. In the 'IP-address' field, specify the address that will be assigned to the device to access it. Enter the subnet mask (default: 255.255.255.0) To save and apply changes click...
  • Page 107 HTTP proxy. To save and apply changes, click If a separate VLAN is used for the IPTV service, switch to the advanced settings mode by clicking the 'more' link and enter the VLAN ID in the corresponding field. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 108: Value Added Services Usage

    R 4—call transfer. Voice connection will be established between Subscribers A and C.  R clearback—call transfer. Voice connection will be established between Subscribers A and C. Fig. shows an algorithm of 'Attended calltransfer' service operation. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 109 ____________________________________________________________________________________ ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 110 'Local Calltransfer' service allows to transfer the call within the gateway without external REFER message sending in case when Subscriber C is local TAU-4M.IP, subscriber and call was made directly, without proxy server. If subscriber C is external subscriber or local, but has been dialed using proxy server, 'Local Calltransfer' service processing as 'Attended Calltransfer', ie call transfer is carried out by sending the REFER message to subscriber B.

  • Page 111: Call Waiting

    If one of the participants leaves the conference, the initiator and the second participant will switch into a standard two-party call. Short flash clearback is processed as described in Sections 3.1 Call Transfer and 3.2 Call Waiting. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 112 ____________________________________________________________________________________ Figure below shows an algorithm of '3-way conference' service performed locally by subscriber B via SIP protocol. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 113: Remote Conference

    (also called a focus) by pressing flash + 3, and then requests for focus to establish a connection with two other conference participants. The figure below shows detailed operation algorithm. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 114: Connection Establishment Algorithms

    'ringback' tone to Subscriber A phone. 4. Subscriber B answers the call. 5. Subscriber A gateway confirms session establishment. 6. Subscriber A clears back, 'busy' audio tone is sent to the Subscriber B. 7. Subscriber B gateway confirms received clearback command. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 115: Call Algorithm Involving Sip Proxy Server

    Subscriber B phone, and 'ringback' tone to Subscriber A phone. 13. Subscriber B answers the call. 14. Subscriber A gateway confirms session establishment. 15. Subscriber A clears back, 'busy' audio tone is sent to the Subscriber B. 16. Subscriber B gateway confirms received clearback command. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 116: Call Algorithm Involving Forwarding Server

    'ringback' tone to Subscriber A phone. 8. Subscriber B answers the call. 9. Subscriber A gateway confirms session establishment. 10. Subscriber A clears back, 'busy' audio tone is sent to the Subscriber B. 11. Subscriber B gateway confirms received clearback command. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 117: Device Automatic Update Algorithm Based On Dhcp

    $SN – Serial number – instead of this macro, the device inserts its own serial number in the file URL; $PN – Product name – instead of this macro, the device inserts its product name (e.g. TAU-4M.IP) in the file URL;...
  • Page 118 4 - password for authorization on TR-069 server code; 5 - server address code; server address is specified in URL format: tftp://address or http://address. In the first option, the address of the TFTP server is specified, in the second - HTTP; ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 119 Further operation of the device will be impossible. To restore the device, use the instructions provided in the section 6 ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 120: System Recovery After A Firmware Update Failure

    TAU-4M.IP device should start.  If the file transfer process has begun - wait for it to finish, after which the TAU-4M.IP will record the firmware to the memory and automatically start the system. The recording time is about 5 minutes.

  • Page 121: Appendix A. Calculation Of Phone Line Length

    16.875 7.292 TStShp, TAShp 0.50 192.0 8.438 3.646 0.70 96.0 16.875 7.292 0.40 296.0 5.473 2.365 0.50 192.0 8.438 3.646 KSPZP 0.64 116.0 13.966 6.034 KSPP, KSPZP, KSPPB, 0.90 56.8 KSPZPB, KSPPt, KSPZPt, KSPZPK 28.521 12.324 ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...

  • Page 122: Appendix B. Running User-Defined Script Upon System Startup

    Periodically, it is necessary to perform certain actions at device startup, which cannot be performed by specifying certain settings via the configuration file. For this case, TAU-4M.IP device provides the ability to configure the launch of an arbitrary script through the configuration file, in which you can put any desired sequence of commands.

  • Page 123: Appendix C. Dhcp Clients Configuration In Multiservice Mode

    ____________________________________________________________________________________ APPENDIX C. DHCP CLIENTS CONFIGURATION IN MULTISERVICE MODE On TAU-4M.IP devices, starting with version 1.14.1, it is possible to configure the options received by DHCP clients on different interfaces. Only Internet Internet + VoIP Internet + VoIP + Managment...
  • Page 124 The configuration is pre-downloading from the device to the PC (via the web interface), then with the help of any text editor the values are changing and saving. The final step is to upload the changed configuration to the device. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 125 1, 3, 6, 15, 26, 28, 33, 40, 41, 42, 43, 66, 67, 121, 249 After editing the DHCPOptionList, device reboot is recommended. Correct device operation is not guaranteed until the device is rebooted. ____________________________________________________________________________________ TAU-4M.IP Subscriber gateway...
  • Page 126 Contact Eltex Service Center to get technical support regarding our products: 29v Okruzhnaya st., Novosibirsk, Russian Federation, 630020 E-mail: eltex@eltex-co.ru Visit Eltex official website to get the relevant technical documentation and software or send us online request. Official website: https://eltex-co.com/ Download center: http://www.eltex-co.com/support/downloads/...

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