DTMF issue with QSIG between Alcatel and Cisco

alexandre.ratel · ‎04-06-2011

Hi,

I configured a QSIG between an Alcatel PBX and a CUCM.

All my PRI interface are configured in the Cisco's side so Alcatel phones have to use QSIG to do an outbound call.

When I'm using an Alcatel phone to do an outbound call, everything is working except the DTMF.

When I call a Cisco phone from an Alcatel Phone the DTMF works.

When I do an outbound call from a cisco phone, the DTMF works

So my issue appears only with alcatel phone through the QSIG for outbound calls.

In addition, with the debug isdn q931 command on the ISR I can see the following message when I'm using DTMF. For exemple I'm pressing the "#" button :

Facility i =

0x9FAA06800100820100A11002021B6D06072B0C028852B66D160131

Protocol Profile = Networking Extensions

0x0100

0x820100

0xA11002021B6D06072B0C028852B66D160131

Component = Invoke component,

Unsupported operation

If somebody know this issue ?

Configuration :

CUCM : 8.5.1

ISR MGCP with QSIG Variant ECMA

QSIG alcatel R8 variant ECMA

Regards

frlindse · ‎04-11-2011

Hi Alex,

What is the call flow to the pstn from the Alcatel?

Alcatel-->QSIG-->GW1-->CUCM--------|

PSTN<----------GW1<--Switch-type?<--|

alexandre.ratel · ‎04-12-2011

Hi,

The call flow is :

Phone----alcatel pbx----qsig----GW1----mgcp----CUCM----mgcp----GW2----pstn

Thanks for your help

frlindse · ‎04-12-2011

Hi Alexandre,

OK, the first thing is check the QSIG gateway to verify it is recieving dtmf(and understands that it is dtmf) and is passing it to CUCM. Could you send me the following

From both gateways (QSIG - PSTN) show mgcp

From QSIG gateway for a call from Alcatel phone to pstn location that dtmf doesn't work - debug mgcp packets

please include the digits pressed

alexandre.ratel · ‎04-13-2011

Hi,

This is the show mgcp from the first gateway GW1 :

#show mgcp
MGCP Admin State ACTIVE, Oper State ACTIVE - Cause Code NONE
MGCP call-agent: 10.5.1.178 2427 Initial protocol service is MGCP 0.1
MGCP validate call-agent source-ipaddr DISABLED
MGCP validate domain name DISABLED
MGCP block-newcalls DISABLED
MGCP send SGCP RSIP: forced/restart/graceful/disconnected DISABLED
MGCP quarantine mode discard/step
MGCP quarantine of persistent events is ENABLED
MGCP dtmf-relay voip codec all mode nte-ca
MGCP dtmf-relay for voAAL2 is SDP controlled
MGCP voip modem passthrough mode: NSE, codec: g711ulaw, redundancy: DISABLED,
MGCP voaal2 modem passthrough disabled
MGCP voip modem relay: Disabled
MGCP voip mdste modem relay: Disabled
MGCP T.38 Named Signalling Event (NSE) response timer: 200
MGCP Network (IP/AAL2) Continuity Test timer: 200
MGCP 'RTP stream loss' timer disabled
MGCP request timeout 500
MGCP maximum exponential request timeout 4000
MGCP rtp unreachable timeout 1000 action notify
MGCP gateway port: 2427, MGCP maximum waiting delay 3000
MGCP restart delay 0, MGCP vad DISABLED
MGCP rtrcac DISABLED
MGCP system resource check DISABLED
MGCP xpc-codec: DISABLED, MGCP persistent hookflash: DISABLED
MGCP persistent offhook: ENABLED, MGCP persistent onhook: DISABLED
MGCP piggyback msg ENABLED, MGCP endpoint offset DISABLED
MGCP simple-sdp ENABLED
MGCP undotted-notation DISABLED
MGCP codec type g711ulaw, MGCP packetization period 20
MGCP JB threshold lwm 30, MGCP JB threshold hwm 150
MGCP LAT threshold lwm 150, MGCP LAT threshold hwm 300
MGCP PL threshold lwm 1000, MGCP PL threshold hwm 10000
MGCP CL threshold lwm 1000, MGCP CL threshold hwm 10000
MGCP playout mode is adaptive 60, 40, 1000 in msec
MGCP Fax Playout Buffer is 300 in msec
MGCP media (RTP) dscp: ef, MGCP signaling dscp: af31
MGCP default package: trunk-package
MGCP supported packages: gm-package dtmf-package trunk-package line-package
hs-package rtp-package atm-package ms-package dt-package
mo-package mt-package sst-package fxr-package pre-package
md-package fm-package
MGCP Digit Map matching order: shortest match
SGCP Digit Map matching order: always left-to-right
MGCP VoAAL2 ignore-lco-codec DISABLED
MGCP T.38 Max Fax Rate is DEFAULT
MGCP T.38 Fax is DISABLED
MGCP T.38 Fax ECM is DISABLED
MGCP T.38 Fax NSF Override is DISABLED
MGCP T.38 Fax Low Speed Redundancy: 0
MGCP T.38 Fax High Speed Redundancy: 0
MGCP Fax relay SG3-to-G3: ENABLED
MGCP Fax relay ANSam suppression: DISABLED
MGCP control bound to interface GigabitEthernet0/2
MGCP media bound to interface GigabitEthernet0/2
MGCP Upspeed payload type for G711ulaw: 0, G711alaw: 8
MGCP Dynamic payload type for Cisco fax indication: 96, Cisco fax ack: 97
MGCP Dynamic payload type for G.726-16K codec
MGCP Dynamic payload type for G.726-24K codec
MGCP Dynamic payload type for G.726-32K codec
MGCP Dynamic payload type for G.Clear codec
MGCP Dynamic payload type for NSE is 100
MGCP Dynamic payload type for NTE is 99
MGCP rsip-range is enabled for TGCP only.
MGCP Comedia role is NONE
MGCP Comedia check media source is DISABLED
MGCP Comedia SDP force is DISABLED
MGCP g729 variants use static payload type and contain annexb in SDP
MGCP Guaranteed scheduler time is DISABLED
MGCP Disconnect delay error recovery DISABLED
MGCP support for a:crypto RFC notation is DISABLED
MGCP DNS stale threshold is 30 seconds

The show mgcp from the second gateway GW2 :
#sh mgcp
MGCP Admin State ACTIVE, Oper State ACTIVE - Cause Code NONE
MGCP call-agent: 10.5.1.178 2427 Initial protocol service is MGCP 0.1
MGCP validate call-agent source-ipaddr DISABLED
MGCP validate domain name DISABLED
MGCP block-newcalls DISABLED
MGCP send SGCP RSIP: forced/restart/graceful/disconnected DISABLED
MGCP quarantine mode discard/step
MGCP quarantine of persistent events is ENABLED
MGCP dtmf-relay voip codec all mode nte-ca
MGCP dtmf-relay for voAAL2 is SDP controlled
MGCP voip modem passthrough mode: NSE, codec: g711ulaw, redundancy: DISABLED,
MGCP voaal2 modem passthrough disabled
MGCP voip modem relay: Disabled
MGCP voip mdste modem relay: Disabled
MGCP T.38 Named Signalling Event (NSE) response timer: 200
MGCP Network (IP/AAL2) Continuity Test timer: 200
MGCP 'RTP stream loss' timer disabled
MGCP request timeout 500
MGCP maximum exponential request timeout 4000
MGCP rtp unreachable timeout 1000 action notify
MGCP gateway port: 2427, MGCP maximum waiting delay 3000
MGCP restart delay 0, MGCP vad DISABLED
MGCP rtrcac DISABLED
MGCP system resource check DISABLED
MGCP xpc-codec: DISABLED, MGCP persistent hookflash: DISABLED
MGCP persistent offhook: ENABLED, MGCP persistent onhook: DISABLED
MGCP piggyback msg ENABLED, MGCP endpoint offset DISABLED
MGCP simple-sdp ENABLED
MGCP undotted-notation DISABLED
MGCP codec type g711ulaw, MGCP packetization period 20
MGCP JB threshold lwm 30, MGCP JB threshold hwm 150
MGCP LAT threshold lwm 150, MGCP LAT threshold hwm 300
MGCP PL threshold lwm 1000, MGCP PL threshold hwm 10000
MGCP CL threshold lwm 1000, MGCP CL threshold hwm 10000
MGCP playout mode is adaptive 60, 40, 1000 in msec
MGCP Fax Playout Buffer is 300 in msec
MGCP media (RTP) dscp: ef, MGCP signaling dscp: af31
MGCP default package: trunk-package
MGCP supported packages: gm-package dtmf-package trunk-package line-package
hs-package rtp-package atm-package ms-package dt-package
mo-package mt-package sst-package fxr-package pre-package
md-package fm-package
MGCP Digit Map matching order: shortest match
SGCP Digit Map matching order: always left-to-right
MGCP VoAAL2 ignore-lco-codec DISABLED
MGCP T.38 Max Fax Rate is DEFAULT
MGCP T.38 Fax is DISABLED
MGCP T.38 Fax ECM is DISABLED
MGCP T.38 Fax NSF Override is DISABLED
MGCP T.38 Fax Low Speed Redundancy: 0
MGCP T.38 Fax High Speed Redundancy: 0
MGCP Fax relay SG3-to-G3: ENABLED
MGCP Fax relay ANSam suppression: DISABLED
MGCP control bound to interface BVI1
MGCP media bound to interface BVI1
MGCP Upspeed payload type for G711ulaw: 0, G711alaw: 8
MGCP Dynamic payload type for Cisco fax indication: 96, Cisco fax ack: 97
MGCP Dynamic payload type for G.726-16K codec
MGCP Dynamic payload type for G.726-24K codec
MGCP Dynamic payload type for G.726-32K codec
MGCP Dynamic payload type for G.Clear codec
MGCP Dynamic payload type for NSE is 100
MGCP Dynamic payload type for NTE is 99
MGCP rsip-range is enabled for TGCP only.
MGCP Comedia role is NONE
MGCP Comedia check media source is DISABLED
MGCP Comedia SDP force is DISABLED
MGCP g729 variants use static payload type and contain annexb in SDP
MGCP Guaranteed scheduler time is DISABLED
MGCP Disconnect delay error recovery DISABLED
MGCP support for a:crypto RFC notation is DISABLED
MGCP DNS stale threshold is 30 seconds

You can find the debug mgcp packet from the QSIG gateway in attached file. I apologize cause there are many calls in progress on this gateway. I tried to send the following DTMF during call : 1 2 3 4 5 6 #

But I already know you will see nothing in the debug file. This is my problem, no DTMF are sent, so nothing appears in the debug

Thanks a lot for your help

frlindse · ‎04-13-2011

Hi Alexandre,

In the debugs we see CUCM request notification for any dtmf event

R: D/[0-9ABCD*#]

When the gateway detects dtmf of say 1 we should see a Notify with

O:D/1

We don't see any of this coming in the QSIG gateway. Could you try changing to out of band for dtmf? Currently it is set to

MGCP dtmf-relay voip codec all mode nte-ca

can you change to

mgcp dtmf-relay voip codec all mode out-of-band

Also, what version of IOS are you running on the gateway?

Thanks

alexandre.ratel · ‎04-14-2011

Hi frlindse,

I change the configuration to : mgcp dtmf-relay voip codec all mode out-of-band then reset the gateway. So I'm using the dtmf out-of-band now but no difference. I don't see anything in the debug mgcp packet. It's very strange cause I see dtmf in the debug only when I'm doing an internal call between Alcatel and Cisco, nothing during PSTN calls.

Currently I'm running 15.1(3)T on the both gateway

In attached file you can find the new show mgcp for the both gateway and a new debug mgcp pac. In this debug file I'm trying tu use dtmf 1 2 3 4 5 6 #

Thanks and regards

frlindse · ‎04-14-2011

Hi Alexandre,

Could you also gather

debug isdn q931

debug isdn standard

Debug isdn events

For a call to an extension and a call to the pstn from the Alcatel, just to see if we are getting it from the pbx.

Thanks,

alexandre.ratel · ‎04-19-2011

Hi frlindse,

Sorry for the delay but I was a bit busy.

You can find in attached file the traces you asked me for the both gateway :

- Call from alcatel to an extention : DebugMGCP_ISDNstandard_GW1_InternalCall.txt and DebugMGCP_ISDNstandard_GW2_InternalCall.txt

- Call from alcatel to the pstn : DebugMGCP_ISDNstandard_GW1_PSTNCall.txt and DebugMGCP_ISDNstandard_GW2_PSTNCall.txt

Tanks and Regards

Mitash Bhatia · ‎04-16-2011

Dear Alexandre,

I am going to do a similar integration soon. I would really appreciate if you could send me the show run of your GW1.

Also some supportive document for integration.

Thanks

alexandre.ratel · ‎04-19-2011

Hi,

This is the show tech of the first gateway, have fun

frlindse · ‎04-18-2011

Hi Guys,

Here are a couple of PDF's that show how both sides should look. One is H.323 to a gateway, the other MGCP controlled CUCM

alexandre.ratel · ‎04-19-2011

Thanks I will read the documents you gave me and hope it will

helps me

frlindse · ‎04-19-2011

I don't see any dtmf coming across to circuit. Since this is isdn they should come over the d-channel as an out-of-band signal or they are being delivered inband as part of the voice stream.

When you call a CUCM phone or a pstn phonoe and the Alcatel phone presses digits do you hear the tone?

(Attached are yje decoded QSIG messages)

gerard.stecca · ‎04-21-2011

Bonjour frlindse bonjour alexandre

Merci frlindse grace à toi j'ai résolu mon problème de DTMF de Alcatel vers le reseau public à travers CISCO.

Alexandre il faut forcer le protocole de ton ARS à QSIG-GF pour que les frequences vocales passent.

Merci encore à tous les deux!!!!!!

Hello frlindse Hello Alexandre

Thank you frlindse thanks to you I solved my problem of DTMF Alcatel to the public network through CISCO.

Alexander must force the LRA to your protocol QSIG-GF for voice frequencies pass.

Thank you again to both !!!!!!

Gerard