collaboration video task
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collaboration videoTRANSCRIPT
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Description
1.0 6th
AugAwais Draft document for task 2.6e
TASK 2.4E: HQ SIP TRUNK REDUNDANCY O PSTN
STEPS:
CUCM:
We have to use the previously created SIP Trunk to CUBE for Intersite calling using ILBC Codec
Go to the Route list created in task 2.3b Add the CUBE-ILBC trunk in the Route list Adjust the Calling ID transformation mask to be 8202XXXX
CUBE:
Create a dial-peer towards PSTN
dial-peer voice 15 voip destination-pattern 85151111 session protocol sipv2 session target ipv4:157.26.1.253 incoming called-number 85151111 codec transparrent dtmf-relay rtp-nte no vad
Make a call from HQ Phone to PSTN Phone, call should be established, most probally black screen will come on PSTN Phone
Enable the following debug:
Debug ccsip messages
Check the message in which IP address of PSTN appeared in VIA Header
See media capabilities by finding the below message in which you see atleaset following:“ c=IN IP4 157.26.1. “
SAMPLE MESSAGE:
ul 15 10:37:35.370: //212/661200800000/SIP/Msg/ccsipDisplayMsg:Received:
SIP/2.0 200 OKVia: SIP/2.0/UDP 142.102.64.254:5060;branch=z9hG4bK12D1215From: "HQ Phone 2" <sip:[email protected]>;tag=92ABC0-BDDTo: <sip:[email protected]>;tag=2977CC28-1E2ADate: Tue, 15 Jul 2014 10:37:35 GMTCall-ID: [email protected]: 1405420636CSeq: 104 INVITEAllow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTERAllow-Events: telephone-eventRemote-Party-ID: "Video PSTN Phone" <sip:[email protected]>;party=called;screen=yes;privacy=offContact: <sip:[email protected]:5060>Supported: replacesSupported: sdp-anatServer: Cisco-SIPGateway/IOS-15.2.4.M6a **This show it is CME on PSTN ***Supported: timerContent-Type: application/sdpContent-Length: 328
v=0o=CiscoSystemsSIP-GW-UserAgent 3270 1973 IN IP4 157.26.1.253 **This show it is CME on PSTN ***
s=SIP Callc=IN IP4 157.26.1.253t=0 0m=audio 17490 RTP/AVP 18 101c=IN IP4 157.26.1.253a=inactivea=rtpmap:18 G729/8000 *** It shows PSTN is using G729 ***a=fmtp:18 annexb=noa=rtpmap:101 telephone-event/8000a=fmtp:101 0-16a=ptime:20m=video 0 RTP/AVP 119 *** It shows RTP Payload PSTN is using, in this case 119 is being used ***c=IN IP4 157.26.1.253
From above message, we observe the following:- PSTN side is CUCME- Codec g729 is being used- RTP Payload 119 is being used
We have to adjust the dial-peer accordingly,
dial-peer voice 15 voip destination-pattern 85151111 session protocol sipv2 session target ipv4:157.26.1.253 incoming called-number 85151111rtp payload-type cisco-codec-fax-ack 111 rtp payload-type cisco-codec-video-h264 119 codec transparrent dtmf-relay rtp-nte no vad