Re: [Serusers] Call transfer with 7960s - sr-users

17 Feb 2005

Capture the SIP packets from/to the gateway and take a look at the SDP. 
I Don't know if Cisco can handle this scenario (sending RTP to itself) 
proper.

regards,
klaus

Steve Blair wrote:

...

 Thanks I guess but the problem is that if a call comes in from the PSTN
 to an IP phone via a Cisco 2620 gateway and is then transferred back 
 through
 the same gateway to a Centrex extension the call connects but no media
 is exchanged.

 Klaus Darilion wrote:

  Hi Steve!

 You don'T have to do anything special for call  transfer. Call 
 transfer is end2end feature - implementied by the SIP clients. The 
 REFER message will be forwarded by the SIP proxy as any other message.

 regards,
 klaus

 Steve Blair wrote:

>
> Hello:
>
> I have a Cisco 7960 running v7.3 SIP image. The phone registers to SER
> 0.8.14 stable. Everything works fine except call transfer. Has anyone
> experienced problems with call transfer? Has anyone done anything
> specific in their ser config to handle call transfer?
>
> Thanks,Steve
> 