Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Conference calling to an external keeps dropping

Hi,

Recently we have discovered that conferncing of an external number keeps dropping that particular call. Conferencing internally is fine however the external calls keeps getting disconnected.

It is an h323 gateway. If you want I can send the sh run configs.

Any ideas?

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: Conference calling to an external keeps dropping

add the voice class codec on the voip dial peers

HTH

java

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
8 REPLIES
Cisco Employee

Re: Conference calling to an external keeps dropping

Probably codec issues, if you're using SW CFB it only handles G711.

H323 by default uses G729 unless configured to do otherwise.

HTH

java

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
New Member

Re: Conference calling to an external keeps dropping

Can you guide me as to what has to done on the h323 gateway?

I created a voice class as follows:

voice class codec 2

codec preference 1 g711ulaw

codec preference 2 g729r8

codec preference 3 g729br8

What next ?

Cisco Employee

Re: Conference calling to an external keeps dropping

add the voice class codec on the voip dial peers

HTH

java

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
New Member

Re: Conference calling to an external keeps dropping

I already added it to the voip dial peer that I have see below:

7000 for auto-attendant

172.21.0.2- Call Manager

dial-peer voice 9990 voip

destination-pattern 7000

voice-class codec 2

session target ipv4:172.21.0.2

dtmf-relay h245-alphanumeric

no vad

Am I missing another voip dial-peer?

Cisco Employee

Re: Conference calling to an external keeps dropping

I have no idea of your dial plan or call flow, so...

HTH

java

if this helps, please rate

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
New Member

Re: Conference calling to an external keeps dropping

hi,

Did u find out what the problem is ?

Am facing the same problem...Can you pls explain me what you did to fix this pls.

shiv

Bronze

Re: Conference calling to an external keeps dropping

just an input fellow trini :). are the calls being disconnected immedaitely or are they proceeding and then dropping after a while...if its the latter then it may not be codec but as Jaime was indicating we will need a little more to go on to find the exact cause of the issue. Of course dont post anything ip addressing etc that you think would be a security issue

New Member

Re: Conference calling to an external keeps dropping

Thanks for your reply..

Its a Codec problem and the issue has been resolved :)

many thanks

shiv

189
Views
0
Helpful
8
Replies