Forum Discussion
Solved
Call issue
Hello.
I try to route call from Teams to Cisco TelePresence. Route is fine. In call I reach Cisco TelePresence correctly, I hear welcome message but after that call is disconnected.
I see that issue on SBC:
05:29:31.000 ---- Incoming SIP Message from 52.114.132.46:9728 to SIPInterface #1 (Teams) TLS TO(#160) SocketID(374022) ---- [Time:27-07@05:29:31.137]
SIP/2.0 488 Not Acceptable Here
FROM: <sip:+19995550118@sxsbc1.qg.com:5061;user=phone>;tag=39559345~43deca70-8680-4d84-9d07-93c553f67090-36911004
TO: "Sabat, Michal"<sip:+14145668769@sip.pstnhub.microsoft.com:5061;user=phone>;tag=6e609738eadb4f1ba2e599116fa0cb6a
CSEQ: 3 INVITE
CALL-ID: 85391d0fad8054ff8c02e5e71ec57b92
VIA: SIP/2.0/TLS sxsbc1.qg.com:5061;branch=z9hG4bKac1774153124
REASON: Q.850;cause=79;text="6ce84b5c-aa0a-4b12-ba82-5c662a807926;InternalDiagCode: InvalidNumberOfMedia, InternalErrorPhrase: Incorrect number of media streams in SDP offer"
CONTACT: <sip:api-du-a-euno.pstnhub.microsoft.com:443;x-i=6ce84b5c-aa0a-4b12-ba82-5c662a807926;x-c=85391d0fad8054ff8c02e5e71ec57b92/d/8/4e34278e2ec843bdae4c1e43ebfbeab7>
CONTENT-LENGTH: 0
ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY
SERVER: Microsoft.PSTNHub.SIPProxy v.2020.7.17.8 i.USEA.8
- i faced this issue before, i found that
### the trunk from teams has the following:
-mediaBypass $false
-BypassMode $true
###on Gateway ICE-Lite is enabled
Solution:
make -MediaBypass True
ensure that if you enabled ICE-lite on the gateway, enable the media Bypass on Teams, to allow the candidate to be sent from teams Any idea?
