[cisco-voip] SIP call issue, call get connected after 10 sec.

Brian Meade bmeade90 at vt.edu
Mon Mar 31 09:37:41 EDT 2014


Raaj,

CUCM should dynamically insert an MTP when needed for a DTMF mismatch.
 Would probably need to investigate what is happening when you leave MTP
Required unchecked.

MTP Required overrides the normal Early Offer process when turned on via
the SIP Profile on the trunk.  It still results in an Early Offer invite
though but through a different process.

Brian


On Mon, Mar 31, 2014 at 12:07 AM, Rajkumar Yadav
<rajkumaryadav at y7mail.com>wrote:

> we do had unchecked the MTP and tested the call, all calls were properly
> treated.
>
> However the DTMF issue came up, since the Genesys side SIP softphone is
> supporting only inband (RFC 2833) and MGCP gateway would be configured with
> OOB DTMF method.
>
> (since SCCP phone support both DTMF method can we change the dtmf method
> in MGCP gateway itself)
>
> Also from the traces it fails to do EO due to configuration issue.
>
> 16:15:17.424
> |//SIP/SIPCdpc(2,68,205069)/ci=48665604/ccbId=918923/scbId=0/isTrunkConfiguredforVoiceEO:
> Trunk configured for EO but EO will not be effective due to other
> configuration - MTPRequired=1 IPAddrMode=0
> MediaPreference=0|2,100,68,205069.1^*^*
>
>
>
>
> Kind Regards,
> Raaj
>
>
>
>   ------------------------------
>  *From:* Brian Meade <bmeade90 at vt.edu>
> *To:* Amit Kumar <amit3.kum at gmail.com>
> *Cc:* "Heim, Dennis" <Dennis.Heim at wwt.com>; "cisco-voip at puck.nether.net" <
> cisco-voip at puck.nether.net>; Rajkumar Yadav <rajkumaryadav at y7mail.com>
> *Sent:* Monday, 31 March 2014 9:12 AM
> *Subject:* Re: [cisco-voip] SIP call issue, call get connected after 10
> sec.
>
> The only difference I was able to find between the working and nonworking
> is that the Create Connection Response is received before the outgoing
> invite in the working scenario:
> Create Connection:
> 16:15:17.423 |MGCPHandler send msg SUCCESSFULLY to: 10.128.0.2
> CRCX 1822574 S0/SU0/DS1-0/11 at 10.128.0.2 MGCP 0.1
> C: D000000002e69403000000F58000051d
> X: b
> L: p:20, a:PCMU, s:off, t:b8
> M: recvonly
> R: D/[0-9ABCD*#]
> Q: process,loop
> |2,100,153,1.1390558^10.128.0.2^*
>
> Create Connection Response:
> 16:15:17.433 |MGCPHandler received msg from: 10.128.0.2
> 200 1822574 OK
> I: D2D7
>
> v=0
> c=IN IP4 10.128.0.2
> m=audio 19388 RTP/AVP 0 100
> a=rtpmap:100 X-NSE/8000
> a=fmtp:100 192-194,200-202
> a=X-sqn:0
> a=X-cap: 1 audio RTP/AVP 100
> a=X-cpar: a=rtpmap:100 X-NSE/8000
> a=X-cpar: a=fmtp:100 192-194,200-202
> a=X-cap: 2 image udptl t38
> |2,100,152,1.5650860^10.128.0.2^*
>
> Outgoing Invite:
> 16:15:17.468 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to
> 10.14.0.46 on port 5460 index 2245
> [3153414,NET]
> INVITE sip:2600 at 10.14.0.46:5460 SIP/2.0
> Via: SIP/2.0/TCP 10.128.4.10:5060;branch=z9hG4bK9ddfe2fc1b6c2
> From: <sip:226241315 at 10.128.4.10
> >;tag=918923~30427db0-275c-441d-b31f-5c77cf1a9379-48665604
> To: <sip:2600 at 10.14.0.46>
> Date: Sat, 29 Mar 2014 20:15:17 GMT
> Call-ID: d6d8fe00-337129d5-34100-a04800a at 10.128.4.10
> Supported: timer,resource-priority,replaces
> Min-SE:  1800
> User-Agent: Cisco-CUCM8.5
> Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER,
> SUBSCRIBE, NOTIFY
> CSeq: 101 INVITE
> Expires: 300
> Allow-Events: presence
> Supported: X-cisco-srtp-fallback
> Supported: Geolocation
> Cisco-Guid: 3604545024-0000065536-0000204906-0168067082
> Session-Expires:  1800
> P-Asserted-Identity: <sip:226241315 at 10.128.4.10>
> Remote-Party-ID: <sip:226241315 at 10.128.4.10
> >;party=calling;screen=yes;privacy=off
> Contact: <sip:226241315 at 10.128.4.10:5060;transport=tcp>
> Max-Forwards: 70
> Content-Type: application/sdp
> Content-Length: 210
>
> v=0
> o=CiscoSystemsCCM-SIP 2000 1 IN IP4 10.128.4.10
> s=SIP Call
> c=IN IP4 10.128.4.10
> t=0 0
> m=audio 28102 RTP/AVP 0 101
> a=rtpmap:0 PCMU/8000
> a=ptime:20
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
>
>
> Here's what the nonworking looks like:
> Create Connection:
> 16:17:47.391 |MGCPHandler send msg SUCCESSFULLY to: 10.128.4.12
> CRCX 1822579 S0/SU3/DS1-0/14 at 10.128.4.12 MGCP 0.1
> C: D000000002e69406000000F58000048a
> X: e
> L: p:20, a:PCMU, s:off, t:b8
> M: recvonly
> R: D/[0-9ABCD*#]
> Q: process,loop
> |2,100,153,1.1390562^10.128.4.12^*
>
> OpenLogicalChannelAck from MTP:
> 383984245 |2014/03/29 16:17:47.406 |100 |SdlSig-I
>  |MXAgenaOpenLogicalChannelAck           |outCall_waitOLCAck
> |SIPCdpc(2,100,68,205070)
> |MediaTerminationPointControl(1,100,122,3)
> |1,100,50,1.79616142^10.128.4.10^MTP_3    |[R:N-H:0,N:0,L:0,V:0,Z:0,D:0]
> rc=0 partyId=34213137 port=28106 ipAddrType=0 ipv4=10.128.4.10
>
> Outgoing invite with a=inactive:
> 16:17:47.407 |//SIP/SIPTcp/wait_SdlSPISignal: Outgoing SIP TCP message to
> 10.14.0.46 on port 5460 index 2245
> [3153448,NET]
> INVITE sip:2600 at 10.14.0.46:5460 SIP/2.0
> Via: SIP/2.0/TCP 10.128.4.10:5060;branch=z9hG4bK9de045e6642c
> From: <sip:226241315 at 10.128.4.10
> >;tag=918936~30427db0-275c-441d-b31f-5c77cf1a9379-48665607
> To: <sip:2600 at 10.14.0.46>
> Date: Sat, 29 Mar 2014 20:17:47 GMT
> Call-ID: 30412d00-33712a6b-34104-a04800a at 10.128.4.10
> Supported: timer,resource-priority,replaces
> Min-SE:  1800
> User-Agent: Cisco-CUCM8.5
> Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, PRACK, UPDATE, REFER,
> SUBSCRIBE, NOTIFY
> CSeq: 101 INVITE
> Expires: 300
> Allow-Events: presence
> Supported: X-cisco-srtp-fallback
> Supported: Geolocation
> Cisco-Guid: 0809577728-0000065536-0000204907-0168067082
> Session-Expires:  1800
> P-Asserted-Identity: <sip:226241315 at 10.128.4.10>
> Remote-Party-ID: <sip:226241315 at 10.128.4.10
> >;party=calling;screen=yes;privacy=off
> Contact: <sip:226241315 at 10.128.4.10:5060;transport=tcp>
> Max-Forwards: 70
> Content-Type: application/sdp
> Content-Length: 222
>
> v=0
> o=CiscoSystemsCCM-SIP 2000 1 IN IP4 10.128.4.10
> s=SIP Call
> c=IN IP4 10.128.4.10
> t=0 0
> m=audio 28106 RTP/AVP 0 101
> a=rtpmap:0 PCMU/8000
> a=ptime:20
> a=inactive
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
>
> Create connection response comes after this:
> 16:17:47.408 |MGCPHandler received msg from: 10.128.4.12
> 200 1822579 OK
> I: 1430EE
>
> v=0
> c=IN IP4 10.128.4.12
> m=audio 18048 RTP/AVP 0 100
> a=rtpmap:100 X-NSE/8000
> a=fmtp:100 192-194
>
> It could be a potential race condition.  He's running 8.5.1 base so
> definitely huge bug potential here.  I found
> https://tools.cisco.com/bugsearch/bug/CSCtk77040 which seems to be a good
> match based on the conditions.  I would try getting rid of the MTP Required
> on the SIP Trunk and see if that resolves the issue.  If so, you should
> probably upgrade to the latest 8.5.1 SU if you need to send Early Media.
>
> -Brian Meade
>
>
> On Sun, Mar 30, 2014 at 3:38 PM, Amit Kumar <amit3.kum at gmail.com> wrote:
>
> Seems to be 8.5.1 , 16:11:57.327 HDR|03/29/2014
> CCM,StandAloneCluster,10.128.4.10,Detailed,8.5.1.10000-26|*^*^*
> 16:11:57.327 |
>
> checking traces Raj
>
>
> On Sun, Mar 30, 2014 at 11:18 PM, Heim, Dennis <Dennis.Heim at wwt.com>wrote:
>
> CUCM version is?
>
> *Dennis Heim | Solution Architect (Collaboration)*
> World Wide Technology, Inc. | 314-212-1814
>
> *PS Engineering: ** Innovate & Ignite.*
>
>
> *From:* cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] *On Behalf
> Of *Rajkumar Yadav
> *Sent:* Sunday, March 30, 2014 3:16 AM
> *To:* cisco-voip at puck.nether.net
> *Subject:* [cisco-voip] SIP call issue, call get connected after 10 sec.
>
> Hi,
>
> Please kind request to help me for the attached logs.
>
> setup is like this
>
> PSTN--MGCP---CUCM--SIP Trunk--Genesys Contact center.
>
> Option selected in SIP trunk is MTP checked (DTMF interoperabiltiy), from
> SIP profile Early offer.
>
> Issue is sometime call goes good and sometime call connected after 10 sec.
>
> We get media inactive and reinvite makes the connection goes good.
>
> For good call     Call-ID: d6d8fe00-337129d5-34100-a04800a at 10.128.4.10
>
> For Bad call       Call-ID: 30412d00-33712a6b-34104-a04800a at 10.128.4.10
>
> Kind Regards,
> Raaj.
>
>
>
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