No ringback tone between dialing and connected call

[osadmin]

Hi everyone,

when we make (outgoing) calls we don’t hear anything until the other person is connected. The usual tone you get (ringback) when the other phone is ringing isn’t there, but you can hear whatever is on the other end of the line when the call is answered. We are using T26P phones. Can this have something to do with settings? I've read this thread; http://forum.yealink.com/forum/showthread.php?tid=211 (No Sound Between Dialing and Connected Call) but there does not seem to be a specific answer and the thread is also a year old.


thanks a lot!