I have an issue with ringback :
For specific users (AT&T cell phones) When they call something on my network, the person on the AT&T cell phone does not hear a ring. The call looks like:
AT&TCELL <-> PSTN <-> CISCOSIP <-> SER <-> UAC
But, any other cell phone, and any other phone for that matter, hears a ring when calling.
---greg
Greg Fausak www.AddaBrand.com (US) 469-546-1265 On May 4, 2004, at 2:58 PM, Klaus Darilion wrote:
The ringback tone is generated locally by the callers user agent - typically as soon as the 180 ringing is received.
If a 183 Early media is received, the callers UA will use the incoming RTP stream as ringback tone.
klaus
GR S wrote:
Folks, Sorry to bother you all with such a silly question, but I am facing some issues with ringback tones. I am using SJphones with SER. They work perfectly well, I can make calls to other extensions and talk. I am maintaining a list of valid users in a database table, and have a small module which checks the authennticity of the dialed extension when SER receives INVITEs, and if it is valid, the call is t_relayed to the called extension. My problem is when an extension is dialed, I cannot hear the ringing tone at the callers end. I searched on the archives, but could not find mails addressing such a problem. Obviously I am missing something here. Can anyone help? Thanks for your time... Regards, Girish
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