Transfer call in CUCM

[panda91]

Hello All,

we have a Cisco cucm server and Third Party phones are registered as sip phone.problem is
call transfer is not working at all. When i like to transfer a caller1 i press "Transfer" and dail a intern number caller2 after that press "SEND" and on that moment i get the caller1 back on the line???
What is wrong with it. Is there something wrong in the configuration?

 

[hanluc6933]

Are the DNs in the same partition? Is your phone setup in the correct CSS? Just a thought. Other thought is possible compatibility issue with modelof the third party SIP phone.

~Han

The great use of life is to spend it for something that outlasts it. ~William James