[cisco-voip] DTMF and MGCP gateway

[Uben Pharten]

Hey Bill,

Have you tried this command?

"mgcp package-capability dtmf-package"
 Please send the output of a "show mgcp" command.

Uben - CCNA


On 2/27/06, Bill Riley III <BRiley at jackhenry.com> wrote:
>
>  I was using dtmf-relay h245-alphanumeric with the H.323 gateway. The
> ATA's are using SCCP.
>
>
>  ------------------------------
>
> *From:* Wes Sisk [mailto:wsisk at cisco.com]
> *Sent:* Monday, February 27, 2006 11:13 AM
> *To:* Bill Riley III
> *Cc:* cisco-voip at puck.nether.net
> *Subject:* Re: [cisco-voip] DTMF and MGCP gateway
>
>
>
> with this command:
> mgcp dtmf-relay voip codec all mode out-of-band
>
> the router is using the same DSP commands to recognize inband tones and
> take them out of band so long as h323 was also configured to use dtmf-relay
> h245-alphanumeric.  If you were not using dtmf-relay under h323, your
> signaling would have remained inband (in the audio channel).
>
> With out of band relay, are your ATA's using sccp or h323? If SCCP, SCCP
> only provides for a DTMF, and not a duration.  With h323 gateways if you use
> h245-signal, you get DTMF relayed OOB with both a digit and a duration.
> There is a CCM service parameter to modify digit duration for h323 with
> h245-signal DTMF relay is used.
>
> /Wes
>
> Bill Riley III wrote:
>
>
>
>
>
> I have a 2851 with a PRI into a MFT card for connectivity to the PSTN. I
> also have an IVR system used for a telephone banking application. The
> customer calls a pilot number associated with the PRI and it gets translated
> to an internal hunt group. There are four DN's in the hunt group connected
> to ATA's which terminate into the IVR system. Everything was working fine
> until the gateway was converted from H.323 to MGCP in order to facilitate
> a request by the customer. Now we are getting complaints that the IVR system
> is not understanding certain digits the when the customer is trying to input
> their account number. I have this same ATA to the IVR system setup running
> at a few other customers using H.323 with no problems and we did not have
> any complaints until the switch to MGCP.  I have not been able to track down
> if it is specific digits but the problem seems sporadic, some times the
> customer gets in and sometimes they do not. Here are some sections of the
> router config. I am running CCM 4.1.3. Any help would be appreciated.
>
>
>
>
>
> network-clock-participate wic 1
>
> network-clock-select 1 T1 0/1/0
>
> ip subnet-zero
>
> no ip source-route
>
>
>
> voice class codec 100
>
>  codec preference 1 g711ulaw
>
>  codec preference 2 g729r8
>
> !
>
> !
>
> !
>
> voice class h323 100
>
>  h225 timeout tcp establish 3
>
> !
>
> !
>
> !
>
> voice class dualtone-detect-params 90
>
>  freq-max-power 6
>
>  freq-min-power 25
>
>  freq-power-twist 15
>
>  freq-max-delay 16
>
>  cadence-variation 8
>
> !
>
> controller T1 0/1/0
>
>  framing esf
>
>  linecode b8zs
>
>  pri-group timeslots 1-24 service mgcp
>
> !
>
> interface Serial0/1/0:23
>
>  no ip address
>
>  isdn switch-type primary-ni
>
>  isdn incoming-voice voice
>
>  isdn bind-l3 ccm-manager
>
>  no cdp enable
>
>
>
> ccm-manager redundant-host 10.10.1.10
>
> ccm-manager mgcp
>
> ccm-manager music-on-hold
>
> ccm-manager config server 10.10.1.11
>
> ccm-manager config
>
> !
>
> mgcp
>
> mgcp call-agent 10.10.1.11 2427 service-type mgcp version 0.1
>
> mgcp dtmf-relay voip codec all mode out-of-band
>
> mgcp rtp unreachable timeout 1000 action notify
>
> mgcp modem passthrough voip mode nse
>
> mgcp package-capability rtp-package
>
> no mgcp package-capability res-package
>
> mgcp package-capability sst-package
>
> no mgcp package-capability fxr-package
>
> mgcp package-capability pre-package
>
> no mgcp timer receive-rtcp
>
> mgcp sdp simple
>
> mgcp fax t38 inhibit
>
> mgcp rtp payload-type g726r16 static
>
> mgcp bind control source-interface Loopback0
>
> mgcp bind media source-interface Loopback0
>
> !
>
> mgcp profile default
>
>
>
> Thanks,
>
> Bill Riley
>
>
>
>
>
>
>
>
> ------------------------------
>
>
>
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--
Uben - CCNA
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