Inbound call H323 gateway not working

[nikhilrajan]

Hi Team,

CUCM : 9.x

Gateway : 2921- H323 having BRI connection

Inbound call not working

Issue: When some call the Number 62578294 , the call hits the gateway .... but it does not ring the phone. We are getting cause value 27.

I have attached the logs(debugs: ISDN q931, H225 ANSI, CCAPI inout , TCP packet) and Sh run of the gateway

From CUCM site Gateway and the DNs are in same Partition

Call Flow:

PSTN>>BRI0/0/0)>>H323 Gateway>>Dialpeer 1(Pots)>>>Dialpeer 2(VOIP)>>CUCM>>Hunt Pilot(62578294)>>HL>>>LG>>>>DN 2001

Gateway IP: 192.168.55.1

CUCM : 192.168.5.24 and .25

Note: SP already said everything is very fine from their end

[Leszek Wojnarski · Accepted solution]

You'd actually need to provide debugs from the CUCM (SDL Traces), as the release is comming from the CUCM:

###

*Jun 15 04:03:56.038: H225.0 INCOMING PDU ::=

value H323_UserInformation ::=
{
h323-uu-pdu
{
h323-message-body releaseComplete

###

can you please attach SDL traces.

Additionally can you please confirm that on CUCM site on GW configuration you have "Enable Inbound FastStart" checked?

Leszek

[nikhilrajan]

Hi Leszek,

I shall get you the SDL logs.

I enabled Enable Inbound FastStart on the Gateway configuration in CUCM but still the same result.

Regards,

Nikhil

[Leszek Wojnarski]

Ok Nikhil,

And I understand that you've restarted clicked restart on the CUCM webpage for this GW after doing the change, right?

Leszek

[nikhilrajan]

Yes Leszek, I reset/ restarted the Gateway from CUCM page. After that i deleted and recreate the Gateway configuration but no luck

Regards,

Nikhil

[Leszek Wojnarski]

Ok, let's see CUCM Traces.

btw:

I can see from logs it's a new setup of h323. Why don't you use SIP instead, as it's usually easier to troubleshoot.

Leszek

[nikhilrajan]

Hi Leszek,

I am trying to retrieve CUCM logs as i have dependency on customer for access.

Well customer is comfortable with  H323 set up as other site also running the same protocol and more over customer is fine with H323 :)

Regards,

Nikhil

[nikhilrajan]

Hi Guys,

Issue got resolved today.... 

Customer was not using Hlog softkey option. Due to which call was not hitting

Even i was under assumption that they were using it.

Thank you Leszek and Deepak for all the support 

Regards,

Nikhil

[Deepak Mehta]

Try adding another voip dial-peer for .24 ip and make sure GW has inbound CSS for the phone partition. Thanks

[nikhilrajan]

HI Deepak,

Earlier it was .24 ( pub) and since it was not working i moved  to .25(Sub). Also inbound CSS have the phone partition. I am trying to retrieve the CUCM logs 

Regards,

Nikhil

[Deepak Mehta]

Thank you for update Nikhil.

Looking at the version ,i was thinking GW needs  trust list commands to prevent toll fraud prevention.That is the reason i requested to have two separate dial-peer's for .24 and .25 . I could be wrong as well.

However As per Leszek suggestion let us go with CCM logs.Hopefully we are able to help find the cause.thanks