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Denwa Communications DW-210P User Manual

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DW-210P
USER MANUAL
USER
DW-210P
MANUAL
www.denwaip.com

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Summary of Contents for Denwa Communications DW-210P

  • Page 1 DW-210P USER MANUAL USER DW-210P MANUAL www.denwaip.com...

  • Page 2: Safety Notices

    Safety Notices: Please read the following safety notices before installing or using this phone. They are crucial for the safe and reliable operation of the device. Please use the external power supply that is included in the package. Other power supplies may cause damage to the device, affect the behavior or induce noise.
  • Page 3 Introducing DW-210P Phone Thank you Thank you for purchasing the DW-210P Voice Over Internet Protocol (VoIP) telephone. The DW- 210P is a fully featured telephone that provides voice communication over the data network. This phone has all the features of a traditional telephone and all gives access to many data service features.

  • Page 4: Function Description

    Keypad Key name Function Description These keys are used in many areas of phone operation. Depending on the application they will Navigation have different functions. Message Waiting Indication key, used for voice mail read and listened. Volumen +/- Adjust the volume by pressing these two keys. When off hook, this will dial the last called number.

  • Page 5: Input/Output Ports

    Key name Function Description This light blinks to indicate a missed call. Indicator light Various functions depending on the phone mode. Soft key 1/2/3/4 Description will be shown in LCD. Keyboard Dial phone numbers 1.4 Input/Output Ports Key name Function Description Power switch Input: 5V AC, 1A 10/100M Connect it to Network...

  • Page 6: Icon Introduction

    1.5 Icon Introduction Estado LED Descripción Call out Call in Call hold Auto answer Contact DND(Do not Disturb) In hand free mode In handset mode Missed call Call forward 1.6 LED Introduction 1.6.1 Power Indication LED (Power Light Enabled) LED Status Description Steady red Power on.

  • Page 7: Led Status

    1.6.2 Power Indication LED (Power Light Disabled) LED Status Description Blinking red There is an incoming call Initial Connection and Setting 2.1 Connecting the phone Connect to the network. Use the Ethernet cable in the package to connect the WAN port on the back of your phone to an Ethernet port.

  • Page 8: Network Settings

    The phone’s LCD screen displays “INITIALIZING”. Later, a ready screen displays the date, time and current network mode. If your LCD screen displays different information from the above, more information may need to be entered. Please refer to the next section. If your phone registers into your IP telephony Server, it is ready to use.
  • Page 9 INDICE Use the keypad to enter the Password. Press Save. Press Down key. Use vol-/vol+ key to enable PPPoE. Press Save. Press Back to return to the WAN Settings screen. Press up/down key to scroll to “1 Connection Mode.” Press Enter. Use vol-/vol+ to select “PPPoE.”...
  • Page 10 INDICE Press Down key. Use the keypad to enter the DNS 2 Address if desired. Press Save softkey. Press Back softkey. Press up/down key to scroll to “1 Connection Mode.” Press Enter. Use vol-/vol+ to select “Static IP.” Press Save softkey. Press Back or Exit 6 times to return to idle screen.

  • Page 11: Basic Functions

    Basic Functions Making a call 3.1.1 Call Device Calls can be made using two different devices: Handset - Pick up the handset. The icon will be shown on the LCD screen. Speakerphone - Press the Speaker button. The icon will be shown on the LCD screen. The number may also be dialed first.

  • Page 12: Call Waiting

    Busy: Incoming calls are immediately forwarded when the phone is busy. No Answer: Incoming calls are forwarded when the phone is not answered after a specific period. To configure Call Forward via Phone interface: 1. Press Menu ->Features->Enter>Call Forward->Enter. 2. Select the line to be forwarded. 3.
  • Page 13 NOTE: Call waiting and call transfer must be enabled. NOTE: The SIP server must support RFC3515. 3.7.3 Semi-Attended Transfer During a conversation, press the XFER key, dial the number to which the call is to be transferred. Then press the Send softkey. When the third party phone begins to ring, press XFER to complete the transfer.

  • Page 14: Click To Dial

    *1* is the code. After saving the above configuration, C can dial *1* plus B’s phone number to pick up A’s call. The prefix can be set to anything the user desires that does not interfere with other dialing rules. Join call This allows a third party to join an existing call.
  • Page 15 Auto answer If this feature is activated, the phone will answer incoming calls after a programmable delay. Hotline/Warmline This feature will cause the phone to place a call to a programmed number whenever it goes off-hook. A different hotline number can be set for each SIP line. Speed dial This feature will allow you make speed dial easily.

  • Page 16: Speed Dial

    Speed Dial 5. Input the number. Press 2aB softkey if necessary to change the input method. 6. Press Save to save the change. 7. To hear a new voicemail, press the Voicemail softkey. Then press Dial. It may then be neces- sary to enter a password.

  • Page 17: Auto Answer

    The MWI key allow make call to listen the voicemail. Other Functions 5.1 Call Forward If this feature is enabled, the phone will forward to another phone. 6. Press Menu ->Features-> Enter->Auto Answer-> Enter. 7. Use Up/Down key to select line. 8.
  • Page 18 If this function is enabled the new incoming calls will be rejected. 1. Press Menu ->Features-> Enter->DND-> Enter. 2. Use vol-/vol+ to Enable. 3. Use Up/Down key to access line setting. 4. Use vol-/vol+ to Enable. Ban Anonymous If this function is enabled, the phone will block calls with no Caller ID information. 1.

  • Page 19: Auto Redial

    2. Select Add to enter the Edit interface, and input information. Note: It is recommended that Dial Peer be configured from the web interface. Refer to Section 8.3.3.4. 5.11 Intercom Enables/Disables Intercom calls Press Menu ->Features-> Enter->Intercom-> Enter. 5.12 Auto Redial If Auto Redial is enabled, the phone will continue to retry a busy call.

  • Page 20: Password Dial

    b) All – None of the digits will be shown on the LCD. The “*” will be shown. c) Delay – The last digit entered will be shown for a short time and then replaced by “*.” d) Last Show – The last digit entered will be shown. Previous digits are replaced by “*.” 5.16 Password Dial This feature controls the display of dialed digits.

  • Page 21: Basic Setting

    5.20 Auto Switch Line If this feature is enabled,then the opportunity to use the first available line call path. 1. Press Menu ->Features-> Enter->Auto Switch Line-> Enter. 2. Use vol-/vol+ to enable. Basic Setting Keyboard 1. Press Menu ->Settings-> Enter->Basic Settings-> Enter->Keyboard->Enter. 2.

  • Page 22: Voice Volume

    6.3.2 Ring Type 1. Press Menu -> Settings-> Enter-> Basic Settings-> Enter-> Ring Settings-> Enter-> Ring Type-> Enter. 2. Use vol-/vol+ to select the desired ring type. There are 9 standard types and 3 user types. The user type can be configured from the web interface. The phone will ring at the selected type shortly after it is selected.

  • Page 23: Advanced Settings

    Maximum message length is 12 characters. 3. Press Save. 4. Use BACK or EXIT to return to idle screen. Language 1. Press Menu ->Settings-> Enter->Basic Settings-> Enter->Language Set ->Enter. 2. Use vol-/vol+ to choose English or Chinese. 3. Press Save. 4.

  • Page 24: Service Code

    10. Park Number – Code for call park 11. Join Call Number – Code to join a call 12. Missed Call Logs – Enable or disable 7.1.3 Service Code Sets the codes to be dialed to an IP PBX to enable or disable the following functions. 1.

  • Page 25: Web Configuration

    Web Configuration Introduction of configuration 8.1.1 Configuration Methods There are three methods which can be used to configure this phone: Phone keypad – As discussed in previous sections Web browser - Recommended way Telnet with CLI command 8.1.2 Password Configuration There are two levels of access: root level and general level.

  • Page 26: Configuration Via Web

    8.3 Configuration via WEB 8.3.1 BASIC 8.3.2 Status Field Name Explanation Shows the configuration information for WAN and LAN port, including connection mode of WAN port (Static, DHCP, Network PPPoE), MAC address, IP address of WAN port and LAN port, DHCP server status for LAN port (ENABLED or DISABLED).
  • Page 27 8.3.2.1 Wizard Select the appropriate network mode. The phone supports three network modes:: 1 Static: The parameters of a Static IP connection must be provided by your ISP. 2 DHCP: In this mode, network parameter information will be obtained automatica- lly from a DHCP server.
  • Page 28 8.3.2.1.3 PPPoE If PPPoE is selected, this screen will appear. Enter the information provided by the ISP. Click Back to return to the Wizard screen. Click Next to go to Quick SIP Settings. 8.3.2.1.4 Quick SIP Settings Field Name Explanation Display Name The name shown in caller ID.
  • Page 29 Field Name Explanation Authentication Password SIP password. SIP User Phone number. Enable Registration Submits registration information. Normally checked. Click Back to return to the IP Address screen. Click Next to see summary screen. Click Finish button to save settings and reboot. After the reboot, SIP calls can be made. 8.3.2.2 Call Log Outgoing call logs can be seen on this page.
  • Page 30 Field Name Explanation Start Time Start time of the outgoing call Duration Duration of the outgoing call. Dialed Calls Account, protocol, and line of the outgoing call. 8.3.2.3 Language Outgoing call logs can be seen on this page. Field Name Explanation Language Set the language of phone.
  • Page 31 8.3.3 Network 8.3.3.1 WAN Config Field Name Explanation Active IP Address The current IP address of the phone. Current Subnet Mask The current Subnet Mask. Current IP Gateway The current Gateway IP address. MAC Address The MAC address of the phone. MAC Timestamp Time the MAC address was obtained.
  • Page 32 8.3.3.1.1 Static IP If Static IP is chosen, the screen below will appear. Enter values provided by the ISP. Example: 8.3.3.1.2 DHCP If DHCP is chosen, all configuration information will be provided by a DHCP server. Contact the ISP to determine if DHCP is used. 8.3.3.1.3 PPPoE If PPPoE is chosen, the screen below will appear.

  • Page 33: Lan Config

    Service Name IP Address or name of DSL Server User DSL User Name or Login ID Password DSL Password After entering the new settings, click the APPLY button. The phone will save the new settings and apply them. If a new IP address was entered for the phone, it must be used to login to the phone after clicking the APPLY button.
  • Page 34 Field Name Explanation Enable NAT operation Port Mirror can only be activated in bridge mode. If activated, the data stream from the WAN port is copied to the LAN port of the Port Mirror phone. If Bridge Mode is activated, the phone will not provide an IP address for the LAN port.
  • Page 35 Chart 2 shows an example with two VLANs indicated by red and blue. In this example, frames broadcast from Port 1 will only go to Port 2 since Ports 3 and 4 are in a different VLAN. VLANs can be used to divide a network by restricting the transmission of broadcast frames. Note: In practice, VLANs are distinguished by the use of VLAN IDs Field Name Explanation...

  • Page 36: Service Port

    Field Name Explanation SIP 802.1P Priority Specify the value of the voice 802.1p priority. Range is 0-7 Specify the value of the signal 8021.p priority. Range is 0-7 Audio 802.1P Priority Follow WAN: LAN Port ID is same as WAN ID Disable: Disable Port VALN LAN Port VLAN Mode Enable: Specify a VLAN ID for the LAN port which is different...

  • Page 37: Dhcp Service

    Field Name Explanation Telnet Port Port for Telnet access. The default is 23. Set the beginning value for RTP Ports. Ports are dynamically RTP Port Range Start allocated. RTP Port Quantity Set the maximum quantity of RTP Ports. The default is 200. Notes: 1.
  • Page 38 Field Name Explanation IP-MAC mapping table. If the LAN port of the phone connects to DHCP Client Table a device, this table will show its IP and MAC address. Name of the lease table. Leased Table Name Start IP Address Beginning IP address of the lease table.

  • Page 39: Time And Date

    8.3.3.6 TIME&DATE Set the time zone and SNTP (Simple Network Time Protocol) server on this page. Daylight savings time configuration and manual time and date entry are also done on this page Field Name Explanation Simple Network Time Protocol (SNTP) Settings Enable SNTP Enable or Disable SNTP If this is enabled, phone will synchronize time with DHCP server.
  • Page 40 Field Name Explanation Date Format Specify the date format. Fourteen different formats are available Four date separators are available: /, - , . , space. Date Separator Daylight Saving Time Settings Enable Enable daylight saving time. Offset(minutes) DST offset. Default is 60 minutes. Month Start and end month for DST Week...
  • Page 41 www.denwaip.com...
  • Page 42 Field Name Explanation Choose the sip line to configured (SIP 1 – SIP2). Click the dropdown arrow to select the line. Shows registration status. Will show “Registered” if Status registered or “Unapplied” if not registered. Server Address SIP server IP address or URI. Server Port SIP server port.
  • Page 43 Field Name Explanation Activate Hot Line feature. Automatically call a number by Enable Hotline going off hook Hotline Number Number to be called in Hot Line Mode. Used in Hot Line Mode. Time the phone waits after off hook Warm Line Wait Time before dialing the hot line number.
  • Page 44 INDICE Field Name Explanation Busy CFwd On Code Busy Call Forward On - When this function is enabled, the server will forward all calls to a designated number if the telephone is busy. The call record will not be displayed in Call History. Busy CFwd Off Code Disable Server Busy CFwd as described above.
  • Page 45 Field Name Explanation Dial Without Registered Allow outgoing calls without registration. Ban Anonymous Call Refuse Anonymous Calls Enable DNS SRV Enables use of DNS SRV records Enable Missed Call If enabled, the phone will save missed calls into the call history record.
  • Page 46 Field Name Explanation SIP Global Settings Enable Strict Branch - The value of the branch must be after “z9hG4bK” in the VIA field of the INVITE message received, or Strict Branch the phone will not respond to the INVITE. Note: This will affect all lines Enable Group Enable SIP Group Backup.

  • Page 47: Stun Config

    Field Name Explanation Server Port IAX2 server port. Default is 4569. Account IAX2 account name for registration Password IAX2 registration password. Phone Number IAX2 phone number (usually the same as IAX2 account name). Local Port IAX2 local port. Default is 4569. Voice Mail Number Voice mail number.
  • Page 48 Field Name Explanation STUN NAT Transversal Shows whether or not STUN NAT Transversal was successful. Server Address STUN Server IP address Server Port STUN Server Port – Default is 3478. STUN blinding period – STUN packets are sent at this interval Binding Period to keep the NAT mapping active.
  • Page 49 Example 2: Substitution – To dial a long distance call to Beijing requires dialing area code 010 before the local phone number. Using this feature 1 can be substituted for 010. For example, to call 62213123 would only require dialing 162213123 instead of 01062213123. Example 3: Addition –...
  • Page 50 Field Name Explanation There are two types of matching: Full Matching or Prefix Mat- ching. In Full matching, the entire phone number is entered and then mapped per the Dial Peer rules. Phone number In prefix matching, only part of the number is entered followed by T.

  • Page 51: Web Interface

    Web Interface Explanation Example This creates a speed dial Dial “2” function. Dialing “2”, will The SIP1 server will receive cause entire alias 33334444 number to be sent out. The phone will add the alias Dial “8309“ to the end of the dialed The SIP1 server will receive number dialed...
  • Page 52 Field Name Explanation The first codec choice: G.711A， G.711A u, G.722, G.723.1, First Codec G.729AB, G.726-32The first codec choice: G.711A， G.711A u, G.722, G.723.1, G.729AB, G.726-32 The second codec choice: G.711A， G.711A u, G.722, Second Codec G.723.1, G.729AB, G.726-32,None The third codec choice: G.711A， G.711A u, G.722, G.723.1, Third Codec G.729AB, G.726-32,None The forth codec choice: G.711A，...
  • Page 53 Field Name Explanation Enable or disable Voice Activity Detection (VAD). If VAD is First Codec enabled, G729 Payload length cannot be set greater than 20 mSec. Second Codec The RTP Payload type that indicates DTMF. Default is 101 Enable special dialing tone as MWI indication, if PBX supports Third Codec the special MWI tone indication.
  • Page 54 Field Name Explanation Wait time before the phone performs the Auto Handdown Auto Handdown Time behavior described above. If enabled, the phone will automatically redial a call if a busy Enable Auto Redial tone is received. Wait time between auto redial attempts in seconds. Auto Redial Interval Auto Redial Times Maximum number of auto redial attempts.
  • Page 55 Field Name Explanation Enable 3-way Conference If enabled, allows 3-way conference. If enabled, the phone will accept a call even if the called Accept Any Call number does not belong to the phone. This is similar to Auto Redial except that the phone detects the Enable Call Completion state of the called number before making a new call attempt.
  • Page 56 Field Name Explanation Enable dialing DTMF tone played, or disable for dialing DTMF Play Dialing DTMF Tone tone played. URL for various actions performed by the phone. These actions are recorded and sent as xml files to the server. Sample format Action URL Settings is http://InternalServer /FileName.xml Add or Delete Blocked numbers –...

  • Page 57: Dial Plan

    8.3.5.3 DIAL PLAN This phone supports 7 dialing modes: Press "#" to Send– Dial the desired number, and press # to send it to the server. Fixed Length – The number will be sent to the server after the specified number of digits are dialed.
  • Page 58 Dial Plan Special Characters Match any single digit that is dialed. Match any arbitrary number of digits including none. A time out period before digits are sent of n seconds in length. n is mandatory and can have a value of 0 to 9 seconds. Tn must be the last 2 characters of a dial plan. If Tn is not specified it is assumed to be T0 by default on all dial plans.
  • Page 59 8.3.5.4 CONTACT Enter the name, phone number and ring type for each contact here. Field Name Explanation Phonebook Tables Dropdown box to select group Name Contact name Office Number, Mobile Contact phone numbers Number, Other Number Ring type for this contact Ring Type Group Contact group for this contact...
  • Page 60 INDICE Field Name Explanation Line Select line for associated contact number Ring Type Ring type for this contact Choose the group or groups for this contact and move them Group Setting to the Selected list on the right. Import Contact List Select File Click the browse button to select the phonebook file to import.
  • Page 61 This will forbid incoming calls from any number except 4119. 8.3.5.5 Remote Contact Allows you access to remote contact lists either via XML or LDAP. TFTP example for remote xml mode: Set the Phonebook Name as Denwa - Server URL is tftp://192.168.1.3/admin/phonebook/index.xml.
  • Page 62 Remote Phonebook Settings Server Address LDAP server address. Server Port LDAP server port. depending on the server’s authentication mode. There are Authentication NONE,DIGEST-MD5,CRAM-MD5,SIMPLE Line Assigned SIP line for the LDAP dialing Username User name for LDAP authentication Password Password for LDAP authentication Search Base Search data directory Allow LDAP contact search and disply LDAP contact name...
  • Page 63 MCAST Settings Define the priority of the active call, 1 is the highest priority, Prority 10 is the lowest. The voice call in progress shall take precedence over all Enable Page Priority incoming paging calls. Name Listened multicast server name Host:port Listened multicast server’s multicast IP address and port.
  • Page 64 8.3.7 Maintenance 8.3.7.1 Auto Provision The phone supports PnP, DHCP, and Phone Flash to obtain configuration parameters. They will be queried in the following order when the phone boots. DHCP PnP server Phone Flash Auto Provision Settings Field Name Explanation Show the current config file’s version.
  • Page 65 Field Name Explanation Config Encryption Key Encryption key for the configuration file Common Config Encryption key for common configuration file Encryption Key Save Auto provision Save the Autoprovision username and password in the phone until the server url changes Information DHCP Option Settings Field Name Explanation...
  • Page 66 TR069 Settings Field Name Explanation Enable TR069 Enable/Disable TR069 configuration ACS Server Type Select Common or CTC ACS Server Type. ACS Server URL ACS Server URL. ACS User User name for ACS. ACS Password ACS Password. TR069 Auto Login Enable/Disable TR069 Auto Login. "Inform"...
  • Page 67 Field Name Explanation Notice Normal but significant condition. Informational Normal daily messages. Debug Debug messages normally used by system designer. This level can only be displayed via telnet. Syslog Configuration Field Name Explanation Syslog Settings Server IP Syslog server IP address. Server Port Syslog server port.

  • Page 68: Config Setting

    Field Name Explanation Web Capture Capture a packet stream from the phone. This is normally Start used to troubleshoot problems. Stop capturing the packet stream Stop 8.3.7.3 Config Setting Config Setting Field Name Explanation Web Capture Save the current phone configuration. Clicking this saves all Start configuration changes and makes them effective immediately.
  • Page 69 8.3.7.4 Update This page allows uploading configuration files to the phone Update Field Name Explanation Web Capture Browse to the config file, and press Update to load it to the phone. Various types of files can be loaded here including Web Update firmware, ring tones, local phonebook and config files in either text or xml format.
  • Page 70 Field Name Explanation Action to be executed by the phone. 1. Application update - download system update file 2. Config file export - Upload config file to FTP/TFTP server. It can then be named and saved. 3. Config file import - Download the config file from FTP/TFTP server. The configuration will be effective after the phone is reset.
  • Page 71 Access Configuration Field Name Explanation LCD Menu Password Settings Sets the password for entering the setup menu from the Menu Password phone keypad. The password must be only digits. Keyboard Lock Settings Display Title Direct press set passwords can lock the keyboard Version Set phone keyboard lock password, must enter Numbers, limit is no more than 6 characters...

  • Page 72: Web Filter

    Some configuration modifications require a reboot to become effective. Clicking the Reboot button will cause the phone to reboot immediately. Note: Be sure to save the configuration before rebooting. 8.3.8 Security 8.3.8.1 Web Filter WEB Filter The Web filter is used to limit access to the phone. When the web filter is enabled, only the IP addresses between the start IP and end IP can access the phone.
  • Page 73 8.3.8.2 Firewall Firewall rules can be used to prevent unauthorized Internet users from accessing private networks connected to this phone (input rule), or prevent unauthorized devices connected to this phone from accessing the Internet (output rule). Each rule type supports a maximum of 10 items.

  • Page 74: Network Address Translation (Nat)

    Field Name Explanation destination address mask. example: Dest Mask 255.255.255.255 points to one host while 255.255.255.0 points to a C type network. When a connected device tries to access 192.168.1.118, the phone will deny the request because of the out_access rule. Access to any other IP address will be allowed. Click the Delete button to delete the selected rule.
  • Page 75 The following chart describes the network access control of DMZ. Application Layer Gateway (ALG) Settings Field Name Explanation IPSec ALG Enable/Disable IPSec encryption. Default is enabled. FTP ALG Allow the ALG to securely pass FTP traffic. Default is enabled. PPTP ALG Allow the ALG to securely pass PPTP traffic.
  • Page 76 Field Name Explanation Shows the NAT TCP and UDP mapping tables NAT Table Option Transfer Type Select the TCP or UDP protocol. Inside IP Set the local IP address of device. Inside Port Set the LAN (inside) port for NAT mapping Outside Port Set the WAN (outside) port for NAT mapping Note: After entering settings, click the Add button to add new mapping table data.
  • Page 77 Field Name Explanation Select L2TP. You can choose only one for current state. After you select it, save the confi- guration and reboot the phone. Enable VPN Enable/Disable VPN. L2TP Select Layer 2 Tunneling Protocol OpenVPN Select OpenVPN Protocol Only one protocol may be activated. After the selection is made, the configuration should be saved and the phone rebooted.
  • Page 78 Field Name Explanation SIP TLS File Show SIP TLS authentication certificate. HTTPS File Show HTTPS authentication certificate. OpenVPN Files Show OpenaVPN File authentication certificate file. 8.3.9 Logout Click Logout to exit the phone web page. www.denwaip.com...

  • Page 79: Specification

    Appendix 9.1 Specification 9.1.1 Hardware Ítem Specification Input: 100-240V Power Adapter Output: 5V 1A 10/100Base- T RJ-45 1 PORT Port 10/100Base- T RJ-45 1 PORT Idle: 2.5W Power Consumption Active: 2.8W LCD Size 128x48 pixels Operation Temperature 0∼40℃ Relative Humidity 10∼65% Broadcom SDRAM...
  • Page 80 • HD Voice • SIP support • SIP domain • SIP authentication • none • basic • • • Peer to Peer/ IP call • Automatic line selection • 9 Standard ring tones and 3 user-defined ring tones • DTMF •...
  • Page 81 • Phonebook 500 records • Support call logs • Incoming Calls • Outgoing Calls • Missed Calls • Max of 300 Records Each • Supports vCard/XML/CSV • Support IAX2 • Programmable Soft Keys • Code synchronization • IP PBX • •...
  • Page 82 • Wan Port Supports Main DNS and Secondary DNS • Supports DNS via DHCP or Static DNS • Supports DHCP client on WAN • Supports DHCP server on LAN • QoS with DiffServ • Network Tools in Telnet Server • Ping •...
  • Page 83 9.2 Digit-character map table Keypad Character Keypad Character 7 P Q R S p q r s 2 A B C a b c 8 T U V t u v 3 D E F d e f 9 W X Y Z w x y z 4 G H I g h i 5 J K L j k l 6 M N O m n o...

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