[cisco-voip] CCM<->CUBE<->MS Teams via Direct Routing

[Hefin James [ahj] (Staff)]

Hi Everyone,

I've it a snag with a setup, and I can't see what it's failing on.
Calls from MS Teams<->CUBE<->CCM route and work correctly, but not the other way.

I just get a "SIP/2.0 488 Not Acceptable Here" which is usually CODEC, but I'm forcing the CODEC to G711ulaw as described in 'Direct Routing for Microsoft Phone System with Cisco Unified Border Element (CUBE)'

2021-04-19 14:39:11 local3/7  Apr 19 14:39:11 BST: //35634/9E24AF000000/SIP/Msg/ccsipDisplayMsg:
2021-04-19 14:39:11 local3/7  Sent:
2021-04-19 14:39:11 local3/7  INVITE sip:+441970XXXXXX at sip2.pstnhub.microsoft.com:5061;user=phone<sip:+441970622456 at sip2.pstnhub.microsoft.com:5061;user=phone> SIP/2.0
2021-04-19 14:39:11 local3/7  Via: SIP/2.0/TLS real.world.ip:5061;branch=z9hG4bK2A0E2390
2021-04-19 14:39:11 local3/7  From: "AHJ Test" <sip:+441970YYYYYY at ZZZZZZZZZ.aber.ac.uk<sip:+441970624205 at teams-gw.aber.ac.uk>>;tag=19270142-B3
2021-04-19 14:39:11 local3/7  To: <sip:+441970XXXXXX at sip2.pstnhub.microsoft.com<sip:+441970622456 at sip2.pstnhub.microsoft.com>>
2021-04-19 14:39:11 local3/7  Date: Mon, 19 Apr 2021 13:39:11 GMT
2021-04-19 14:39:11 local3/7  Call-ID: 7554DE42-A04B11EB-8CDFDAFB-244A983D at ZZZZZZZZZ.aber.ac.uk<mailto:7554DE42-A04B11EB-8CDFDAFB-244A983D at teams-gw.aber.ac.uk>
2021-04-19 14:39:11 local3/7  Supported: timer,resource-priority,replaces,sdp-anat
2021-04-19 14:39:11 local3/7  Min-SE:  1800
2021-04-19 14:39:11 local3/7  Cisco-Guid: 2653204224-0000065536-0000000030-4077854636
2021-04-19 14:39:11 local3/7  User-Agent: Cisco-SIPGateway/IOS-17.3.3
2021-04-19 14:39:11 local3/7  X-MS-SBC: Cisco UBE/ISR4351/IOS-17.3.3
2021-04-19 14:39:11 local3/7  Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER
2021-04-19 14:39:11 local3/7  CSeq: 101 INVITE
2021-04-19 14:39:11 local3/7  Timestamp: 1618839551
2021-04-19 14:39:11 local3/7  Contact: <sip:+441970YYYYYY at ZZZZZZZZZ.aber.ac.uk:5061;transport=tls<sip:+441970624205 at teams-gw.aber.ac.uk:5061;transport=tls>>
2021-04-19 14:39:11 local3/7  Expires: 180
2021-04-19 14:39:11 local3/7  Allow-Events: telephone-event
2021-04-19 14:39:11 local3/7  Max-Forwards: 68
2021-04-19 14:39:11 local3/7  Session-ID: 8d66825c953b5cf5a1bcb2fad7b35cc2;remote=00000000000000000000000000000000
2021-04-19 14:39:11 local3/7  Session-Expires:  1800
2021-04-19 14:39:11 local3/7  Content-Type: application/sdp
2021-04-19 14:39:11 local3/7  Content-Disposition: session;handling=required
2021-04-19 14:39:11 local3/7  Content-Length: 475
2021-04-19 14:39:11 local3/7
2021-04-19 14:39:11 local3/7  v=0
2021-04-19 14:39:11 local3/7  o=CiscoSystemsSIP-GW-UserAgent 4399 1826 IN IP4 real.world.ip
2021-04-19 14:39:11 local3/7  s=SIP Call
2021-04-19 14:39:11 local3/7  c=IN IP4 real.world.ip
2021-04-19 14:39:11 local3/7  t=0 0
2021-04-19 14:39:11 local3/7  a=ice-lite
2021-04-19 14:39:11 local3/7  m=audio 8238 RTP/SAVP 0 101
2021-04-19 14:39:11 local3/7  c=IN IP4 real.world.ip
2021-04-19 14:39:11 local3/7  a=rtpmap:0 PCMU/8000
2021-04-19 14:39:11 local3/7  a=rtpmap:101 telephone-event/8000
2021-04-19 14:39:11 local3/7  a=fmtp:101 0-16
2021-04-19 14:39:11 local3/7  a=ptime:20
2021-04-19 14:39:11 local3/7  a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
2021-04-19 14:39:11 local3/7  a=label:main-audio
2021-04-19 14:39:11 local3/7  a=label:main-audio
2021-04-19 14:39:11 local3/7  a=rtcp:8239 IN IP4 real.world.ip
2021-04-19 14:39:11 local3/7  a=ice-ufrag:Wcpd
2021-04-19 14:39:11 local3/7  a=ice-pwd:4jFD67CwNiKIjLhaPn8Q21
2021-04-19 14:39:11 local3/7  Apr 19 14:39:11 BST: //35634/9E24AF000000/SIP/Msg/ccsipDisplayMsg:
2021-04-19 14:39:11 local3/7  Received:
2021-04-19 14:39:12 local3/7  SIP/2.0 100 Trying
2021-04-19 14:39:12 local3/7  FROM: "AHJ Test"<sip:+441970YYYYYY at ZZZZZZZZZ.aber.ac.uk<sip:+441970624205 at teams-gw.aber.ac.uk>>;tag=19270142-B3
2021-04-19 14:39:12 local3/7  TO: <sip:+441970XXXXXX at sip2.pstnhub.microsoft.com<sip:+441970622456 at sip2.pstnhub.microsoft.com>>
2021-04-19 14:39:12 local3/7  CSEQ: 101 INVITE
2021-04-19 14:39:12 local3/7  CALL-ID: 7554DE42-A04B11EB-8CDFDAFB-244A983D at ZZZZZZZZZ.aber.ac.uk<mailto:7554DE42-A04B11EB-8CDFDAFB-244A983D at teams-gw.aber.ac.uk>
2021-04-19 14:39:12 local3/7  VIA: SIP/2.0/TLS real.world.ip:5061;branch=z9hG4bK2A0E2390
2021-04-19 14:39:12 local3/7  CONTENT-LENGTH: 0
2021-04-19 14:39:12 local3/7  ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
2021-04-19 14:39:12 local3/7  SERVER: Microsoft.PSTNHub.SIPProxy v.2021.4.12.3 i.USEA.2
2021-04-19 14:39:12 local3/7  TIMESTAMP: 1618839551
2021-04-19 14:39:12 local3/7
2021-04-19 14:39:12 local3/7  Apr 19 14:39:12 BST: //35634/9E24AF000000/SIP/Msg/ccsipDisplayMsg:
2021-04-19 14:39:12 local3/7  Received:
2021-04-19 14:39:12 local3/7  SIP/2.0 488 Not Acceptable Here

Dial peer is like what laid out in the document:

dial-peer voice 200 voip
description towards Phone System Proxy 1
preference 1
rtp payload-type comfort-noise 13
session protocol sipv2
session target dns:sip.pstnhub.microsoft.com
destination e164-pattern-map 200
voice-class codec 1
voice-class stun-usage 1
voice-class sip early-offer forced
voice-class sip tenant 200
voice-class sip options-keepalive profile 200
dtmf-relay rtp-nte
srtp
fax protocol none
no vad
!

Any clues would be most welcome.

Thanks,
Hefin

--------------------------------------------------------------
Hefin James
Rheolwr Seilwaith TG /  IT Infrastructure Manager
Gwasanaethau Gwybodaeth / Information Services
Prifysgol Aberystwyth / Aberystwyth University

[Description: Description: Disgrifiad: Disgrifiad: Description: Description: Description: Description: Description: Iaith Gwaith] Hapus i siarad Cymraeg



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