dial-peer to Call Manager

Unanswered Question
Aug 19th, 2009

Sorry for the basic questions, but

We have this dial peer created for calls to out DIDs that are originating outside our business and destined for Call Manager:

dial-peer voice 2 voip

description Forward 1xxx to Subscriber

preference 1

destination-pattern 1...

voice-class codec 1

voice-class h323 1

session target ipv4:

dtmf-relay h245-alphanumeric

fax rate disable

no vad

We are currently receiving the last four digits from the provider.

Where in call manager is this configured to accept these digits from the gateway to be processed?

I have this problem too.
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Overall Rating: 5 (4 ratings)
Jaime Valencia Wed, 08/19/2009 - 12:11

Under h323 GW config

significant digits and inbound CSS



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Jaime Valencia Wed, 08/19/2009 - 13:46

Usually you would have that configured as H323 GW, but you might have it as H225 trunk. Any of those has the config you need.



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wilson_1234_2 Thu, 08/20/2009 - 04:20


So, inbound calls will hit the Voice Gateway and depending on how the dial peer is configured, will be passed to call manager and then this traffic will be received by Call Manager per the parameters configured on the "Gateway Configuration" page.

Is this correct?

Jaime Valencia Thu, 08/20/2009 - 05:51

Yes, even if your DPs are correct but the config in CUCM does not allow the inbound css or the right # of significant digits it won't go thru



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wilson_1234_2 Thu, 08/20/2009 - 09:00

But, those parameters are on a different page aren't they?

Calling Seach Space and #s of digits?

It looks like the gateway or trunk is only configured to point to a particular IP Address and allow traffic on a certain port.

Any traffic from this IP Address on this port is configured in Call Manager as voice traffic from the gateway, then it steps through the config from there.

Is this correct?

Jaime Valencia Thu, 08/20/2009 - 09:10

No, inbound css and significant digits are next to each other in H323 GW config.

CUCM only recognizes traffic from IPs that are configured, if you do not bind the H323 traffic to the same IP you used to configure the GW in CUCM it will be rejected.



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wilson_1234_2 Thu, 08/20/2009 - 10:22

Thank you, sorry for the basic questions.

So the communication from the Gateway to CUCM is h323?

Also when using MGCP for call manager to control the gateways, you do not need MGCP locall when call manager is in the same LAN as the gateway, only for remote gateways, isthis correct?


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