DN overlays in mixed CME SCCP/SIP environment

[bosseye]

Hi All - perhaps you can help?

We have an existing CME SCCP on 2811 running 7960's/7970's. We use incoming SIP trunks to ephone-dn's and overlay these to multiple phones (so multiple users can see the incoming line ring). All fine.

Now adding a couple of SIP clients, most notably iPhones running CounterPath Bria. Can make outbound calls fine, but I can't see how to pick up these existing dn's...

Reason is, in the SIP "voice register" environment, there seems to be a parallel concept of dn's. How do I have a SIP phone pick up one of those original dn's that work in the SCCP world?

Appreciated,
D

 

[whykap]

try creating a pick up group and add the sip endpoint to it.

 

[bosseye]

Thanks - that makes sense. Unfortunately I can't test it though, as I uncovered a different problem registering SIP endpoints - once I set them to "register & receive incoming calls" I get a 404 error, which does happen if this is not set (whereupon I can successfully make outbound calls). Have looked all over for a config, found a few, but can't see what's wrong yet.

 

[bosseye]

Sorted it. For some irritating reason, for proper SIP registration Cisco require the username to be the same as the number...!

That being said, as I have CME7.1, I fixed the overlay problem using Single Number Reach. So for the incoming dial-peer, I simply added the following:

mobility
snr xxxx delay 0 timeout 20 cfwd-noan yyyy

where xxxx is my SIP number and yyyy my voicemail number.

Works a treat, and helpfully passes the original CLID of the dialling party to the handset (rather than the local number).

br/D