05-22-2008 06:07 AM - edited 03-15-2019 10:49 AM
Hi Guys,
I have a situation where if i receive an incoming call from the Pstn/On-net, about 15 seconds into the call i get a second call incoming call on my phone with exactly the same CLI as the active call but if i try to answer the second call there is no one there....Does anyone have any suggestions or come across this before.. ??? CCM = 5.1 GW=H323
05-28-2008 05:18 AM
How many incoming lines do you have, and are all of them getting this problem?
Does the problem happen consistently?
Do all incoming callers get this error, or only from certain locations?
Also, can you send me a copy of a 'show tech' from this router?
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/cdr_defs/4_x/cdr421.html
05-28-2008 05:45 AM
do a debug isdn q931 and/or a debug voip ccapi inout to verify if the telco is the one sending the call or if this is related to CUCM
HTH
javalenc
if this helps, please rate
05-28-2008 08:48 AM
Are you using a T1 CAS or T1 PRI or perhaps something else?
As recommended try a debug voice ccapi inout and a debug h245 asn1 and debug h225 asn1 and upload the output.
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