SIP trunk, CUBE and CUCM 8.5

[pjiracek]

I have a SIP trunk from a TSP terminated on the CUBE. - c2901 gateway connected via H323 to a CUCM 8.5 cluster. The signalling looks OK but I have no voice. The provider seems to support only G.729br8 codec and my phones (c6901 and c6921) seem to talk G.729r8 only so I need to do some transcoding. I'm in the UK btw.Now, I can do it on the CUBE and utilize dspfarm but that is I think only possible with SCCP. How do I register the gateway in CUCM, if it's already there as the H323 gateway?

Is there any way to do the transcoding on the CUCM? Any general advise would be much appreciated.

Cheers

[pjiracek]

Yes, connectivity is OK, all ports open on the FW between cucm, phones, CUBE and ITSP network.

Config attached - thanks for the hint.

[Ayodeji Okanlawon]

OK. Please remove the dtmf-relay h245 from this dial-peer and add dtmf-relay rtp-nte

dial-peer voice 5555 voip

tone ringback alert-no-PI-------------pls remove this command also (why do you have it ?)

dtmf-relay h245-alphanumeric-----------------Pls remove this and add dtmf-relay rtp-nte

pls do the same for all cucm dial-peer. Test again

When you receive an inbound call what happens? Do you hear it ring?

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[pjiracek]

Great progress - thanks very much - I forgot about the leftovers from the h323 trunk.

I now have audio both ways for the incoming calls!

The only oustanding issue is that there is no ringing tone (or busy tone) in the receiver when the inbound DDI is dialed.

[pjiracek]

All this has been done and I've doublechecked and all is in place.

It works for internal calls and other gateways.

I even tried to assign different MRGLs to the SIP trunk - made no difference.

[Ayodeji Okanlawon]

This is a CUCM problem. Because CUCM is sending 183 with SDP. Hence The calling device will listen to whatever cucm is sending either ringback or Busy. Can you send me CUCM trace.

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[pjiracek]

Hi there,

I've collected the cucm trace files - which file should I look at and attach?

If I redirect the call, I can hear the callback and I can see in sh voip rtp connection the connection to the ANN.

Thanks

Pavel

[Ayodeji Okanlawon]

The redirected call case is correct, because when the call is transfered, the ANN is invoked to play ringback. So that proves ANN is working. However ANN is not needed to play ringback for the direct call. Please send the cucm sdi trace. Please send calling number and called number. Did you remove this command from your dial-peers "tone ringback alert-no-PI"

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[pjiracek]

I think this might be the right trace

[Ayodeji Okanlawon]

There is nothing in the trace. Did you enable detailed tracing on cucm? You need to use RTMT to collect the trace. You need CUCM sdi trace

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[pjiracek]

Sorry, posted too early before I got your reply. Attached is the detailed trace. I have removed the

"tone ringback alert-no-PI"

The calling number is 01418483762, the called number is 01387345345811

[Ayodeji Okanlawon]

Can you confirm what type of phone this is 5811. Is it a sip phone? or a phone using sip protocol.

Never mind I have seen that it is a Cisco-CP6921/9.1.1

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[pjiracek]

Yes, it is

Product Type:	Cisco 6921
Device Protocol:	SIP

[Ayodeji Okanlawon]

I am not sure what is going with this phone..

+++I see the  phone sending a ringing to cucm+++

Incoming SIP TCP message from 146.191.199.29 on port 35767 index 108 with 954 bytes:

[153229,NET]

SIP/2.0 180 Ringing

Via: SIP/2.0/TCP 146.191.251.40:5060;branch=z9hG4bK355385e14f

From: <9ANONYMOUS>;tag=50181~58ef7c6e-6d55-43ea-a324-3eb4beb02da5-143377335

To: <5811>;tag=442b031a9eba03dc00003362-00004cfe

Call-ID: 7deaba80-fec11cd2-1a9-28fbbf92@146.191.251.40

+++++++And then cucm sends the ringing to the CUBE+++++++++++

09:58:58.905 |//SIP/SIPUdp/wait_SdlSPISignal: Outgoing SIP UDP message to 146.191.201.41:[5060]:

[153230,NET]

SIP/2.0 180 Ringing

Via: SIP/2.0/UDP 146.191.201.41:5060;branch=z9hG4bKBEED4

From: ;tag=951C870-2458

To: <5811>;tag=50180~58ef7c6e-6d55-43ea-a324-3eb4beb02da5-143377334

Date: Thu, 28 Jun 2012 08:58:58 GMT

Call-ID:

4C4263AF-C03611E1-832AA4DC-D76223A2@146.191.201.41

So ideally the other party should hear the ringing.

Does the called phone ring? I.e this 5811 does it ring?

Does ir ring when you call it internally from another ip phone, do you hear ring on both sides?

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[pjiracek]

The 5811 phone rings if called externally.

If it is called internally, all is OK: the phone rings and I can hear ringing in the calling receiver.

[Ayodeji Okanlawon · Accepted solution]

Hi,

I have looked at the trace in detail and I have an idea why this is not working..

Can you please remove this from your dial-peers to cucm. Please ensure you remove from all dial-peers to cucm and sip provider.

progress_ind setup enable 3

progress_ind alert enable 8

Please do another test call and send me debug ccsip messages.

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