SIP Trunk with Huawei SoftX3000 : Invalid SDP information

[iantra123]

Hi,

We experience a problem with a SIP trunk between CUCM (6.0 and 8.0 <- Customers) and a Huawei SoftX3000 (Provider).

The problem is that the Call Manager (6 & 8) does'nt accept calls from Huawei.

The problem appears even if we use a voice gateway using IOS 12.4.11T2.

It said that there is a Bad Request - Invalid SDP Information

So we ask : What is the Valid SDP information for Cisco, so that we can tell to the provider the thing to do.

in 12.4.24T5 (CME, or IPtoIP Gateway) the call pass but cannot be transferred to a MeetingPlace. I think the MP7 deny it because the SDP is also invalid for it.

We try with other PBX like Asterisk, and everything works fine.

Any helps please?

Regards,

Antra

[Karthik Sivaram · Accepted solution]

hi,

In the debugs , the following is seen...

-looks like  provider  is sending you a null or binary character in the inbound sip sdp ...

-also errors related to multipart MIME ....

Jul 15 11:07:36.767: //-1/xxxxxxxxxxxx/SIP/Error/sippmh_get_body_length: Boundary not found in multipart body

Jul 15 11:07:36.767: //-1/xxxxxxxxxxxx/SIP/Error/sipUtilPvtParseMimeContent: Content body missing or abrupt msg termination...bailing out

Jul 15 11:07:36.767: //-1/7B4C1D4F8034/SIP/Error/act_idle_new_message: sipAppSetMessage failed

There is  an enhancement request related to this , you can  try one of   the  given workarounds ....

http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsj42068

Thanks,

Karthik

[iantra123]

Hi,

Thank you Karthik.

I've asked them to change the ptime value to 20.

Iand asked the Provider to remove the ISUP, and everithing worked fine.

The application/isup version is in chinese, so the SIP in our side doesn't understand it, thus it tryes to interpret the message and get an " ` " message and somme understood messages (null binary as you said).

and also the message incompleted.

All these problems result the Invalid SDP Information

See in the last message of the INVITE bellow

===============

Received:

INVITE sip:0323232980@192.168.10.4;user=phone SIP/2.0

Via: SIP/2.0/UDP 172.23.10.5:5061;branch=z9hG4bK0279bb7a50aae7d4494eaa44e

Route: <192.168.10.4:5060>

Call-ID: 1f998b68922b3e41b39a9a9b337e33a4@10.18.5.64

From: 324034928 <324034928>;tag=ba371cbd

To: 0323232980 <0323232980>

CSeq: 1 INVITE

Max-Forwards: 70

P-Access-Network-Info: GEN-ACCESS;"area-number=+26132"

P-Charging-Vector: icid-value=AC170A0516194201171514250;orig-ioi=172.23.10.5

Contact: <324034928>

Allow: INVITE,ACK,OPTIONS,BYE,CANCEL,INFO,PRACK,NOTIFY,UPDATE,MESSAGE,REFER

P-Asserted-Identity: <324034928>

Supported: 100rel,timer

Min-SE: 90

Session-Expires: 1800;refresher=uac

Content-Length: 547

Content-Type: multipart/mixed;boundary=ssboundary

--ssboundary

Content-Length: 320

Content-Type: application/sdp

v=0

o=HuaweiSoftX3000 1073766205 1073766206 IN IP4 172.23.10.5

s=Sip Call

c=IN IP4 172.23.11.4

t=0 0

m=audio 29852 RTP/AVP 102 8 0 18 4 116

a=rtpmap:102 AMR/8000

a=rtpmap:8 PCMA/8000

a=rtpmap:0 PCMU/8000

a=rtpmap:18 G729/8000

a=rtpmap:4 G723/8000

a=rtpmap:116 telephone-event/8000

a=ptime:20

a=maxptime:20

--ssboundary

Content-Length: 61

Content-Type: application/isup;version=CHN

  `

End of debug ============

Best regards,

Antra

[iantra123]

Sorry

The web interface of this forum doesn't support also the binary message.

So you will just see a " ` "

:-)

[Karthik Sivaram]

Hi Antra,

Nice to know everthing is working fine

-Karthik

[s.ranjbari]

Could you resolve your issue ?? becuase i have this issue too