[cisco-voip] Media Gateway issue with NTE

tele tele at plexialab.it
Thu May 31 15:43:27 EDT 2007


yes.

!
mgcp
mgcp call-agent IP_MGC 2427 service-type mgcp version 1.0
mgcp dtmf-relay voip codec all mode nte-ca
mgcp codec clear-channel packetization-period 10
mgcp ip qos dscp cs3 signaling
mgcp package-capability dtmf-package
mgcp package-capability mf-package
mgcp package-capability rtp-package
mgcp default-package fxr-package
mgcp timer nse-response t38 250
mgcp fax t38 ls_redundancy 5
mgcp fax t38 hs_redundancy 2
mgcp rtp payload-type clear-channel static
!
mgcp profile default
!


Mark Turpin wrote:
> Can you paste your present MGCP config?
>
> Thanks,
> -Mark
>
>
> On 5/31/07 2:33 AM, "tele" <tele at plexialab.it> wrote:
>
>   
>> Hi all,
>>
>> I have a issue with a Cisco AS5400 and NTE, the problem is simple:
>>
>> the first CRCX:
>>
>> CRCX 122138580 S1/DS1-0/8 at mgmi03 MGCP 1.0
>> C:308
>> L:a:G729;PCMA;PCMU;telephone-event, fxr/fx:t38-loose,
>> fmtp:"telephone-event 0-15", p:20
>> M:recvonly
>> R:fxr/t38
>> X:1
>>
>> contains a fmtp with tone from 0 to 15, when a call goes in progress the
>> MGC send a MDCX to the MG.
>>
>> MDCX 122138581 S1/DS1-0/8 at mgmi03 MGCP 1.0
>> C:308
>> L:a:PCMA;telephone-event, fxr/fx:t38-loose, fmtp:"telephone-event 0-16",
>> p:20
>> I: 17703
>> M:sendrecv
>> R:fxr/t38
>> X:1
>>
>> v=0
>> o=- 1180529725 1180529725 IN IP4 myip
>> s=-
>> c=IN IP4 myip
>> t=0 0
>> m=audio 12388 RTP/AVP 8 101
>> a=rtpmap:101 telephone-event/8000
>> a=fmtp:101 0-16
>>
>> As you can seen MGC want to use tone from 0-16, 16 is the "flash".
>> Now the mediagateway should be able to change the session but an error
>> occur during NTE negotiation:
>>
>> May 30 14:56:02.287 CEST: mgcp_modify_connection: calling
>> mgcp_select_nte
>> May 30 14:56:02.287 CEST: S1/DS1-0/8
>> <VOIP>mgcp_nte_select_rfc2833_dtmf_relay -IN: mode/codec = 5/0
>> May 30 14:56:02.287 CEST: S1/DS1-0/8
>> <VOIP>mgcp_nte_select_rfc2833_dtmf_relay -OUT: mode/codec = 5/0
>> May 30 14:56:02.287 CEST: mgcp_nte_select_payload: No NTE convergence:
>> local nte=(16)/(0000FFFF), sdp nte=(15)/(0000FFFF)
>> May 30 14:56:02.287 CEST: mgcp_modify_connection - Conflicting NTE
>> information
>>
>> and the MG return to the MGC a 502 error:
>>
>> May 30 14:56:02.287 CEST: 502 122138581 Cannot select NTE
>>
>> I've read about the MF package for the support of fmtp, i've tried
>> actived it "mgcp package-capability mf" but nothing change
>>
>> Can i do something on the MG to solve this issue? or i've to work on the
>> MGC side?
>>
>> thank you very much
>>
>> :tele
>>
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>     
>
> --
>
> Mark Turpin
> Senior Consultant - Unified Communications
> Calence, LLC
> IP Phone: 314.656.2315
> Mobile: 314.629.8714
> www.calence.com
> 2005 Cisco Global Channel Partner of the Year ­ US/Canada
>
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