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ZyXEL Communications VOP1372G-61 Support Notes
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ZyXEL Communications VOP1372G-61 Support Notes

ZyXEL Communications VOP1372G-61 Support Notes

Voip line card
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VOP1372G-61
Support Notes
December 2011
Edition 1.0
1

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Summary of Contents for ZyXEL Communications VOP1372G-61

  • Page 1 VOP1372G-61 Support Notes December 2011 Edition 1.0...

  • Page 2: Table Of Contents

    Content Introduction ....................... 3 H.248 Signaling Procedures ..................11 VOP1372G-61 ......................17 H.248 application ..................... 29 Debug guide ......................37...

  • Page 3: Introduction

    Softswitch is the one which provides call control to Media Gateways in a packet voice network. Through VOP1372G-61, ZyXEL transforms its IP DSLAM portfolio into multi-service DSLAM and starts to enter the Media Gateway market worldwide.
  • Page 4 What is H.248? H.248 protocol is a media gateway control protocol that enables Switched Circuit Network (SCN) to transmit voice traffic over IP. H.248 protocol specifies master/slave architecture for decomposed gateways. In the master/slave architecture, Media Gateway Controller (MGC) is the master server and MGs are the slave clients that behave as simple switches.
  • Page 5 Example of H.248 connection model Terminations A Termination is a logical entity on a MG that sources and/or sinks media and/or control streams. A Termination is described by a number of characterizing Properties, which are grouped in a set of Descriptors that are included in commands.
  • Page 6 Context describes the topology and the media mixing and/or switching parameters if more than two Terminations are involved in the association. There is a special Context called the null Context. It contains Terminations that are not associated to any other Termination. Contexts are identified by a Context_Id which is assigned by the MG and is unique within the MG.
  • Page 7 Messages start with a header which is followed by several transactions. The header contains a Message Identifier (MID) and a Version Number. The MID identifies the sender of the message which may be a domain address, domain name or device name. Domain name is a suggested default.
  • Page 8 The structure of Transaction Reply is as follows: TransactionReply(TransactionID { ContextID { Response … Response }, . . . ContextID { Response … Response } }) The TransactionID parameter must be the same as that of the corresponding TransactionRequest. TranctionPending The receiver invokes the Transaction Pending.
  • Page 9 Commands are the major contents in an H.248 message. They control the Context and Termination attributes including specifying the topology structure of the Context and specifying the event reported by the Termination, for example, what signals and actions can be imposed on the Termination.
  • Page 10 MG by sending it a ServiceChange command. The MGC may also use ServiceChange to instruct the MG to take a Termination or group of Terminations in or out of service. Descriptors The parameters to a command are termed Descriptors. A descriptor consists of a name and a list of items.

  • Page 11: Signaling Procedures

    H.248 Signaling Procedures The following part uses an example to illustrate a typical implementation of the H.248 protocol. The diagrams of the call procedure abstractly display the interaction between a media gateway and the media gateway controller instead of taking issues like time graduation into account.
  • Page 12 Call Setup Process Call setup process...
  • Page 13 1) MGC sends a Modify message to both gateways to detect the off-hook event on the terminations. 2) It is assumed that User A hooks off first. After RGW1 detects the event, it sends to MGC a Notify message in which the corresponding event information and detected timestamp are contained.
  • Page 14 10) The users can have a conversation. Once the call is terminated by either party, the other party will hear busy tone.
  • Page 15 Call Backout Process Call backout process 1) It is assumed that the calling party User A will terminate the call. RGW1 sends a Notify message to MGC to report this event. MGC returns a response message of the Notify command. 2) MGC generates a Modify command, indicating to RGW2 to play busy tone to User B.
  • Page 16 MGC. MGC returns a corresponding response message. 5) The gateway sends a Subtract command to delete Term B and EphB from the context 2. RGW2 also deletes the terminations from the context 2 and then returns a response in which the statistics information of the ephemeral termination is contained.

  • Page 17: Vop1372G-61

    ADSL or VDSL service in the same paired copper wire without disturbing each other. Parameters The VOP1372G-61 line card is different from other xDSL series line cards. Following table display the novel attributes in VOP1372G-61 only. Operators should be careful with these parameters while deploying VoIP.
  • Page 18 Country code Some VOIP parameters/settings have different values according to which country operator deploy the VOP1372G-61. To ease the complexity of configuration, we build a list of packages for choice in advance. If your country is not supported in the lists, please select a...
  • Page 19 Configuration commands Setup H.248 profile in IES-5106 To setup the VOP port, you need a template of H248 profile pre-configured, then, apply it into specific port for phone communication. Note: You should have a voice account already set up and have VoIP information from your VoIP service provider prior to configure MG account on to the unit.
  • Page 20 <profile> : profile name, up to 31 characters <mgc-ip> | <mgc-dn> : MGC IP or domain name, up to 63 characters <mgc2-ip> | <mgc2-dn> : Secondary MGC IP or domain name, up to 63 characters <mgc2-port> : Secondary MGC port, 1025~65535 <mgc-port>...
  • Page 21 has no round trip time information, 100~20000 ms <min-retrantime> : lower bound for the retransmission timeout, 100~1000 <max-retrantime> : upper bound for the retransmission timeout, 1000~20000ms <retran-window> : maximum amount of time after the initial transmission,1000~60000 ms <rfc2833> : rfc2833 mode support enable/disable <payload-type>...
  • Page 22 H.248 (Basic setup) IES-5005 Interface slave 1 192.168.1.62 MSC 192.168.168.88/24 1 2 192.168.1.65 3 192.168.1.66 Slot_2 SC 192.168.1.62/24 2 Active Interface 16 192.168.168.70/24 1 Megaco Master 1 192.168.1.62 profile vo h248 set test 192.168.168.32 Master 2 192.168.1.65 voip h248 interface mg set 16 MG1 test voip h248 interface mg en 16 Slot_3 SC 192.168.1.65/24 2 Group 2 3...
  • Page 23 Step 4. Set H.248 interface’s IP address subnet mask, and VLAN ID vo h248 interface ip 16 192.168.168.70/24 1 (set interface 16 IP) Step 5. Set all of the VOP card to interface 16 vo h248 interface slave 16 1 192.168.1.62 (set first member to interface 16) vo h248 interface slave 16 2 192.168.1.65 (set second member to interface 16) vo h248 interface slave 16 3 192.168.1.66(set 3th member to interface 16) Note: Maximum can set 27 members for one interface.
  • Page 24 Setup DSP (CODEC) CODEC is an algorithm which converts analog signal into digital signal and vice versa. There are three main types of waveform codec, source codec, and hybrid codec. Each consume different amount of bandwidth and provide different voice quality level.
  • Page 25 usage: set <profile> [codec <codec> [,<codec>...] [playbuffer <min-delay> <max-delay>] [echotail <echotail>] <profile> : up to 31 characters <codec> : allowed codec type, g711a, g711mu, g723, g726-16, g726-24, g726-32, g726-40, or g729ab <echotail> : echo cancellation echo tail period, 8, 16, 32 or 128 ms <min-delay>...
  • Page 26 MSC1024GB> profile voip dsp set dspprofile1 codec g726-40,g726-32,g726-16 playbuffer 30 90 echotail 40...
  • Page 27 Metallic Loop Test Use the MLT commands to perform a variety of Standard Metallic Line Test on the VoIP line card subscriber ports. MSC1024GB> diag mlt test 3-1 all usage: show <slot-port> MSC1024GB> diag mlt test usage: test <slot-port> <option> [force] <option>...
  • Page 28 Three-Element Resistance Test Results : open : open : open Three-Element Capacitance Test Results : 0.0015 uF : 0.0001 uF : -0.0004 uF Ringer Equivalence Number Test Results : NOT MEASURED Ringing Voltag Test Results vRing : 53.9 Vrms No Metering Voltage Test Results No Draw and Break Dial Tone Test Results Pulse and DTMF Digit Test Results count...

  • Page 29: Application

    H.248 application Topology: IES-5106 MSC1024GB: V4.00(UHG.0)b10 VOP1372G-61: V3.97(UHE.0) We can see there is only one VOP card: VOP1372G-61 under customer’s IES5106 slot Under this SOP, we will use two methods: web GUI CLI command to configure this H.248 application. The 1...
  • Page 30 voip ip set 5 172.25.27.117/24 500 ----> this IP is configured for communication between SC and MC cards. And 500 means VLAN500 switch isolation disable -------disable the port isolation feature under the whole DSLAM Step 2: configure one H.248 server, which is used to communicate with MG by H.248 profile voip h248 set MEGACO 172.25.27.60 -------->...
  • Page 31 Configure interface 1 voip h248 interface ip 1 172.25.27.172/24 1 ---->this IP is configured for communication between VOP card(MG) and MGC. The 1st '1' means interface ID, so this IP should reach MGC’s IP address. Please also note the VLAN 1 configured in DSLAM and connected switch, please pay more attention on tag or untag.
  • Page 32 The 2 method: WEB GUI Step 1: IP setting on each line cards: This IP is configured for communication between SC and MC cards. And 500 means VLAN500. Please also pay more attention on ‘DNS’ setting. Switch isolation disable...
  • Page 33 Step 2: configure one H.248 server, which is used to communicate with MG by H.248 Set one H.248 server named MEGACO with IP: 172.25.27.60...
  • Page 34 Step 3: Choose the Line card mode in one MG (IES5106). Step 4: Under this application, there is only one interface named ’interface 1’ where it includes one SC card (slot 5).
  • Page 35 Configure interface 1 Please also note how does this Voip interface route, you can configure the route in the following page:...
  • Page 36 Enable all ports in slot 5, and configure termination under each port: port h248 term 5-* term1 1 The command "port h248 term 5-* term1 1" will set all ports on slot 5 with termination ID start from term1 to term48...

  • Page 37: Debug Guide

    C: DSP/Codec logs, which should be captured the CLI command under the console window. Debug steps: Under DSLAM, please enable the DSP/Codec/SLIC trace flag in console window: #Login to VOP1372G-61 card MSC>lcman login <slot> VOP>vp ch trace * 4 VOP>dsp spy option 3 VOP>dsp spy rtime 1...