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New Member

Call Back gives Unknown number

Hello,

A costumer has 9971 phones. When i use the call back feature and I do call back the other phone rings but the caller sees unknown number. Even if the call is answered. (i use ucm 8.02)

I tested it in my lab but it works fine. I don't understand what the problem might be.

With kind regards,

Martijn.

3 REPLIES
Cisco Employee

Re: Call Back gives Unknown number

Exact same CUCM version and FW on phones?

HTH

java

If this helps, please rate

www.cisco.com/go/pdihelpdesk

HTH

java

if this helps, please rate

www.cisco.com/go/pdi
Cisco Employee

Re: Call Back gives Unknown number

Call flow?  Protocols?  We need more info in order to help.  Are you calling out to the PSTN, or internal IP to IP?  Debugs would also be helpful assuming we're going out to the pstn.  Is this a PRI or SIP trunk.

More details please.....

New Member

Re: Call Back gives Unknown number

UCM version 8.02c

problem exist internal! between two 9971 phones (SIP)!

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