Ucce agent in reserved state then fast busy

[iptuser55]

Once in a while we are getting issues where an ucce agent is held in reserve, call offered but on picking up, the agent hears fast busy 

I was led to believe this may be Network issue - lack of BW

Signalling is good between agent and cucm otherwise the agent would not be in reserve

On pick up, agent hears fast busy and no caller

I was looking through the cvp logs but nothing jumped out. What logs and word 'words' should I look for. Would the route table or termination table help? 

Thanks 

[Chris Deren · Accepted solution]

Sounds like codec issue, I would start by looking at CUCM SDL traces.

[iptuser55]

Chris, thanks for the pointer it was codec. What threw me was the reserve, then busy.  from another job I was on that this tends to a bw issue. Maybe it was for them but not in this case 

Thanks again