We are facing a problem,When the teleoperator receives any incoming Calls ,(while ringing) Display shows as Voicemail(xxxx) in place of Caller-Id. But as soon as she picks up the call, Caller-ID will be Displyed.
My thought would be that Unity is transferring the call from a zero out option. Since the transfer is coming from an Unity port, you will see that port number. Once the transfer is complete, you get the original caller's CID.
Set the Unity system to do a blind transfer, instead of a supervised transfer.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
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CUCM Database Replication is an area in which Cisco customers and
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