this could be an unsupported codec. Do you know if Office365 supports PCMU? I 
would also try to get rid of 101 (rfc2833) and see if that makes a difference
On Aug 15, 2011, at 8:40 PM, o o wrote:

> Trying to make this work, and Office 365 support is useless, giving me the 
> following response when I asked them for help troubleshooting a 488 Not 
> Acceptable Here.
> 
> Regarding your service request about configuring your PBX system with Office 
> 365, we do not support specific setups for PBX systems for Unified Messaging. 
> Please contact the vendor for more specific instructions and configurations.
> 
> Here is a SIP debug:
> 
> [2011-08-11 23:00:26] VERBOSE[17000] chan_sip.c: Reliably Transmitting (no 
> NAT) to 65.55.174.100:5061:
> OPTIONS sip:um.outlook.com SIP/2.0
> Via: SIP/2.0/TLS 1.2.3.4:5061;branch=z9hG4bK16884162
> Max-Forwards: 70
> From: "Unknown" <sip:[email protected]>;tag=as438c582c
> To: <sip:um.outlook.com>
> Contact: <sip:[email protected]:5061;transport=TLS>
> Call-ID: [email protected]:5061
> CSeq: 102 OPTIONS
> User-Agent: FPBX-2.8.1(1.8.5.0)
> Date: Fri, 12 Aug 2011 06:00:26 GMT
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, 
> PUBLISH
> Supported: replaces, timer
> Content-Length: 0
> 
> 
> ---
> [2011-08-11 23:00:27] VERBOSE[17375] chan_sip.c: 
> <--- SIP read from TLS:65.55.174.100:5061 --->
> SIP/2.0 200 OK
> Via: SIP/2.0/TLS 1.2.3.4:5061;branch=z9hG4bK16884162
> From: "Unknown" <sip:[email protected]>;tag=as438c582c
> To: <sip:um.outlook.com>;tag=b4ec76231
> Call-ID: [email protected]:5061
> CSeq: 102 OPTIONS
> ACCEPT: application/sdp
> CONTENT-LENGTH: 0
> ALLOW: INVITE
> ALLOW: BYE
> ALLOW: CANCEL
> ALLOW: OPTIONS
> ALLOW: ACK
> ALLOW: INFO
> ALLOW: NOTIFY
> SERVER: RTCC/3.5.0.0
> 
> <------------->
> [2011-08-11 23:00:27] VERBOSE[17375] chan_sip.c: --- (16 headers 0 lines) ---
> [2011-08-11 23:00:27] VERBOSE[17000] chan_sip.c: Really destroying SIP dialog 
> '[email protected]:5061' Method: OPTIONS
> [2011-08-11 23:00:47] VERBOSE[17999] chan_sip.c: Audio is at 5061
> [2011-08-11 23:00:47] VERBOSE[17999] chan_sip.c: Adding codec 0x4 (ulaw) to 
> SDP
> [2011-08-11 23:00:47] VERBOSE[17999] chan_sip.c: Adding non-codec 0x1 
> (telephone-event) to SDP
> [2011-08-11 23:00:47] VERBOSE[17999] chan_sip.c: Reliably Transmitting (no 
> NAT) to 65.55.174.100:5061:
> INVITE sip:[email protected] SIP/2.0
> Via: SIP/2.0/TLS 1.2.3.4:5061;branch=z9hG4bK70149e02
> Max-Forwards: 70
> From: "Test User" <sip:[email protected]>;tag=as746bc17a
> To: <sip:[email protected]>
> Contact: <sip:[email protected]:5061;transport=TLS>
> Call-ID: [email protected]:5061
> CSeq: 102 INVITE
> User-Agent: FPBX-2.8.1(1.8.5.0)
> Date: Fri, 12 Aug 2011 06:00:47 GMT
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, 
> PUBLISH
> Supported: replaces, timer
> Content-Type: application/sdp
> Content-Length: 238
> 
> v=0
> o=root 1381221379 1381221379 IN IP4 1.2.3.4
> s=Asterisk PBX 1.8.5.0
> c=IN IP4 1.2.3.4
> t=0 0
> m=audio 17688 RTP/AVP 0 101
> a=rtpmap:0 PCMU/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-16
> a=ptime:20
> a=sendrecv
> 
> ---
> [2011-08-11 23:00:47] VERBOSE[17375] chan_sip.c: 
> <--- SIP read from TLS:65.55.174.100:5061 --->
> SIP/2.0 100 Trying
> Via: SIP/2.0/TLS 1.2.3.4:5061;branch=z9hG4bK70149e02
> From: "Test User" <sip:[email protected]>;tag=as746bc17a
> To: <sip:[email protected]>
> Call-ID: [email protected]:5061
> CSeq: 102 INVITE
> Content-Length: 0
> 
> <------------->
> [2011-08-11 23:00:47] VERBOSE[17375] chan_sip.c: --- (7 headers 0 lines) ---
> [2011-08-11 23:00:47] VERBOSE[17375] chan_sip.c: 
> <--- SIP read from TLS:65.55.174.100:5061 --->
> SIP/2.0 488 Not Acceptable Here
> Via: SIP/2.0/TLS 1.2.3.4:5061;branch=z9hG4bK70149e02
> From: "Test User" <sip:[email protected]>;tag=as746bc17a
> To: <sip:[email protected]>;tag=aprqngfrt-hm4td720000c6
> Call-ID: [email protected]:5061
> CSeq: 102 INVITE
> Content-Length: 0
> 
> <------------->
> [2011-08-11 23:00:47] VERBOSE[17375] chan_sip.c: --- (7 headers 0 lines) ---
> [2011-08-11 23:00:47] VERBOSE[17375] chan_sip.c: Transmitting (no NAT) to 
> 65.55.174.100:5061:
> ACK sip:[email protected] SIP/2.0
> Via: SIP/2.0/TLS 1.2.3.4:5061;branch=z9hG4bK70149e02
> Max-Forwards: 70
> From: "Test User" <sip:[email protected]>;tag=as746bc17a
> To: <sip:[email protected]>;tag=aprqngfrt-hm4td720000c6
> Contact: <sip:[email protected]:5061;transport=TLS>
> Call-ID: [email protected]:5061
> CSeq: 102 ACK
> User-Agent: FPBX-2.8.1(1.8.5.0)
> Content-Length: 0
> 
> 
> ---
> [2011-08-11 23:00:48] VERBOSE[17000] chan_sip.c: Really destroying SIP dialog 
> '[email protected]:5061' Method: INVITE
> 
> 
> TIA
> --
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