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Line some times disconnects 1-3sec after resuming from hold

Frank Hoeben
Beginner
Beginner

Situation: user answers phone, puts the caller on hold for 1 to 5 minutes, after resuming the call it disconnects, usually right after the caller hears the user say "thanks for waiting".

The CDR log registers a cause "12" which means the caller hangs up (which they obviously don't).

 

CUCM 10.5.2.15900-8

Cisco 2911 in border element mode connected to a SIP trunk.

 

The problem happens enough times a day that users complain, but not on every call they put on hold.

3 Replies 3

HARIS_HUSSAIN
Rising star
Rising star
Please collect SIP Logs with debug ccsip messages command from VG.

Dennis Mink
Advisor
Advisor

is sounds  like a timer that expires. i mean do these calls get dropped after a certain amount of time or is it all over the shop?  supply sip traces plese

 

Please remember to rate useful posts, by clicking on the stars below.

I thought about a timing issue too, but so far I haven't been able to pin-point a source.

The disconnect always takes place after resuming from hold, not while on hold.

And there's always 1 to 3 seconds of audio, which means the call is successfully resumed.

 

I have tried gathering debug logs, with about 20-30 concurrent calls the router just dies from debug overload.

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