No ringback on call transfer 1

[ReallyRotten]

If an external caller calls our site and they are transferred, no ringback is heard, only dead air. This leads callers to believe they have been disconnected. Is there somewhere I can set ringback?

 

[gnrslash4life]

Generally I have seen this on SIP trunks, and you need to work with the telco to resolve.

Certifications:
A+
Network+
CCENT
CCNA Voice
TVOICE
CAPPS

 

[ReallyRotten]

Interesting - SIP trunks are the main transport at the site, not PRI.

 

[gnrslash4life]

Some carriers require certain parameters for ringback and MOH.

Certifications:
A+
Network+
CCENT
CCNA Voice
TVOICE
CAPPS

 

[HmmG3]

Once the call is answered, it's typically the CUCM that's responsible for providing a ringback tone to the caller on the other end. Make sure an Annunicator is available in the Media Resource Group List of the trunk or gateway.