[asterisk-users] Asterisk and CCM 5.x SIP trunk

[Greg Oliver]

On Fri, 2007-06-01 at 10:18 +0530, Vamsi Pottangi wrote:
> Hi Greg,
> 
> Narrowed the problem ot be that of codec mismatch ;-) Damn
> CCM, doesn't provide proper debugs. 
> 
> I have another query with CCM and Asterisk integration. In CCM cluster
> Phones register to 1st CCM and they fallback to 2nd incase the first
> fails and 3rd CCM incase even 2nd fails. How can asterisk know on
> which CCM subscriber the phone is registered to? How to make sure that
> Asterisk tries all avaiable CCMs to check where the phone is
> registered. 
> 
> Is there any better way to handle this?
> 
> Thanks,
> ~Vamsi

CCM handles all of that stuff internally.  You will see SIP messages
from CCMs coming from all of them all the time.  It is always safest to
put an entry in sip.conf for all of them in the cluster so * can at
least receive calls from any of them.  As far as placing calls to CCM,
CCM will accept it from *, but may use any of the subscribers to route
the call to.  Those get set in your route list/group priorities under
CCM.  If you do not set any priorities, CCM will generally use the
publisher of the cluster.

I have never had any issues as long as all cluster CCMs were in
sip.conf.

-Greg