[cisco-voip] dtmf from cucm to 2821 cube to sip trunk

[Nick Matthews]

You would want to check the SDP of 200 OK the provider sends for your
outgoing call.  It will list the payload type for the dtmf in the
format a=fmtp 101 1-16, or something similar.  You want to find out
what payload type they are advertising (or if they are at all).  It
would be worth checking the incoming INVITE from them to see what
they're using when they send the first SDP.

On that note, I would also remove the asymmetric payload command - to
my knowledge it doesn't do what you're expecting it to.  You may want
to try this command:
voice-class sip dtmf-relay force rtp-nte


-nick

On Mon, Oct 26, 2009 at 5:16 PM, Dane Newman <dane.newman at gmail.com> wrote:
> Hello,
>
> I am having an issue with dtmf working outbound.  Inbound dtmf works fine.
> It took some playing around with it.  At first it didnt work till the
> payload was ajusted.    I am now trying to get outbound dtmf working
> properly.
>
> On my 2821 I debugged voip rtp session named-events and then made a call to
> a 1800 number and hit digits.  I didn't see any dtmf output on the router
> nothing showed up in the debug.  Does this mean I can safely asume that the
> problem for right now is not on the ITSP side but on my side since dtmf is
> not being sent down the sip trunk?
>
> I have my cuc 7.x configured to talk to my 2821 via h323.  The configuration
> of the cisco 2821 is shown below.  Does anyone have any ideas what I can do
> so dtmf digits process properly outbound?
>
> The settings in my cuc 7.x to add the gateway h323 are
>
> h323 cucm gateway configuratration
> Signaling Port 1720
> media termination point required yes
> retry video call as auto yes
> wait for far end h.245 terminal capability set yes
> transmit utf-8 calling party name no
> h.235 pass through allowed no
> significant digits all
> redirect number IT deliver - inbound no
> enable inbound faststart yes
> display IE deliver no
> redirect nunmber IT deliver - outbound no
> enable outbound faststart yes
>
>
> voice service voip
>  allow-connections h323 to h323
>  allow-connections h323 to sip
>  allow-connections sip to h323
>  allow-connections sip to sip
>  fax protocol pass-through g711ulaw
>  h323
>   emptycapability
>   h225 id-passthru
>   h245 passthru tcsnonstd-passthru
>  sip
>
>
> voice class h323 50
>   h225 timeout tcp establish 3
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> !
> voice translation-rule 1
>  rule 1 /.*/ /190/
> !
> voice translation-rule 2
>  rule 1 /.*/ /1&/
> !
> !
> voice translation-profile aa
>  translate called 1
> !
> voice translation-profile addone
>  translate called 2
> !
> !
> voice-card 0
>  dspfarm
>  dsp services dspfarm
> !
> !
> sccp local GigabitEthernet0/1
> sccp ccm 10.1.80.11 identifier 2 version 7.0
> sccp ccm 10.1.80.10 identifier 1 version 7.0
> sccp
> !
> sccp ccm group 1
>  associate ccm 1 priority 1
>  associate ccm 2 priority 2
>  associate profile 1 register 2821transcode
> !
> dspfarm profile 1 transcode
>  codec g711ulaw
>  codec g711alaw
>  codec g729ar8
>  codec g729abr8
>  codec g729r8
>  maximum sessions 4
>  associate application SCCP
> !
> !
> dial-peer voice 100 voip
>  description AA Publisher
>  preference 1
>  destination-pattern 1..
>  voice-class h323 50
>  session target ipv4:10.1.80.10
>  dtmf-relay h245-alphanumeric
>  codec g711ulaw
>  no vad
> !
> dial-peer voice 1000 voip
>  description incoming Call
>  translation-profile incoming aa
>  preference 1
>  rtp payload-type nse 101
>  rtp payload-type nte 100
>  incoming called-number 6782282221
>  dtmf-relay rtp-nte
>  codec g711ulaw
>  ip qos dscp cs5 media
>  ip qos dscp cs5 signaling
>  no vad
> !
> dial-peer voice 101 voip
>  description AA Subscriber
>  preference 2
>  destination-pattern 1..
>  voice-class h323 50
>  session target ipv4:10.1.80.11
>  dtmf-relay h245-alphanumeric
>  codec g711ulaw
>  no vad
> !
> dial-peer voice 2000 voip
>  description outbound
>  translation-profile outgoing addone
>  preference 1
>  destination-pattern .T
>  rtp payload-type nse 101
>  rtp payload-type nte 100
>  voice-class sip asymmetric payload dtmf
>  session protocol sipv2
>  session target ipv4:64.154.41.200
>  dtmf-relay rtp-nte
>  codec g711ulaw
>  no vad
> !
> !
> sip-ua
>  credentials username ***** password 7  *****  realm sip.talkinip.net
>  authentication username  *****  password 7  *****
>  authentication username  ***** password 7  *****  realm sip.talkinip.net
>  set pstn-cause 3 sip-status 486
>  set pstn-cause 34 sip-status 486
>  set pstn-cause 47 sip-status 486
>  registrar dns:sip.talkinip.net expires 60
>  sip-server dns:sip.talkinip.net:5060
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>