SCN Issue

[kxt308]

I have 2 systems both running 11.0.4 with 6 channels on each. The main system has the calls (via SIP) which ring users within a group. I have 5 users from the second site within that group who can log in/out. Every now and then the users on the second site cannot receive calls from the main group, however they still can dial site to site and direct dial calls to a group based at the second site will still ring. If I remove the SCN's from both sites and re-enter them the SCN's start working again. Any ideas

 

[icet500]

what kind of phones? does it ring then no audio?
you can try to uncheck the "allow direct media" from the SIP line, SCN line, and Ext(voip). Also check your firewall.

 

[kxt308]

They are 1408. The phones only ring if directly rung from the other site and voice is ok. The fault is when the hunt group at the main site has calls the 2nd site does not get any calls. Routers have a site to site vpn configured and firewall is disabled for this vpn.