[asterisk-users] Can Asterisk bridge between a SIP client and a Cisco Call Manager server?

[Gordon Henderson]

On Fri, 10 Apr 2009, Shocky wrote:

> Hi,
>
> This is probably outside what Asterisk is intended for, but I'm hoping it can
> help.
>
> I need to make and receive calls through a Cisco Call Manager server that I
> have no control over. I have to use a Cisco soft phone (Cisco IP
> Communicator), which only runs on Windows. But I'm on Linux. CCM is
> apparently capable of supporting SIP and H.323 interfaces, but they won't
> provide this option for me. Right now I'm using a VMWare XP guest to run the
> soft phone, but this is painful (especially with some VPN complications
> thrown in).
>
> I've read that Asterisk supports SCCP, at least somewhat. I'm wondering if I
> could set up Asterisk on my desktop machine to route calls between a SIP
> client such as Kphone or Ekiga and the CCM server. Would this be possible?
>
> I heard that one of the problems in interfacing with CCM over SCCP is the use
> of proprietary codecs. Would this be a problem in my case?
>
> If there's a chance it can be made to work, I'll give it a try. If I'd be
> wasting my time, please let me know.

I've never looked at SCCP, but if it does work then you could use the 
console phone built into asterisk rather than IP plumb it into a 
soft-phone... So asterisk is essentially acting as an SCCP soft-phone 
itself. No GUI though, but if you're happy typing commands... :)

Gordon