sundance-communications.com/forum Forums TDM Business Telephone Systems Inter-Tel Telephones & Systems Emergency call routing

I have two systems in the US. Route Groups and Facility Groups route any calls from the US to Canada through a third system we have in Canada. The Route Groups list dial patterns as so (1403NXXXXX+). We had a 911 call from a US system routed through the Canadian PBX. 911 is not listed in either of the two Route Groups for Canadian routing of calls. The Associated Extension for Emergencies is routed to a local T1 in the US. To fix this, I've created a new Facility Group and Route Group for 911 calls, and placed it at the top of the list in the two US systems.

But I don't know why it rerouted the calls in the first place. Does anyone have an idea?

Addendum. Associated Extensions for all endpoints point to local services in each PBX. 911 is listed as the only emergency number in Number Plan.

If a user presses '911' on the keypad of a phone, the call will route to the Emergency destination under Associated Extensions\Emergency. If a user presses a Call Key or the Outgoing Feature Code or the ARS Feature Code, then dials '911', the call will route via either the Associated Extension\Outgoing destination or ARS. So if my Outgoing field is a trunk group 92001 and I dial '8' + '911', my call will go out trunk group 92001 even if my Emergency Extension is 92000.

Bottom line is- whenever you have networked systems, there should be a 911 Route group routed to the proper Facility group and users should be using ARS for outgoing calls.

All of that falls under the "should" category. I didn't need the new Route Group until I had added Route Groups with the Canadian area codes. None of which use 911. The Emergency associated extension is correct on all endpoints. It appears that the new Route Groups have completely negated the standard 911 programming. I don't like having the 911 Route Group, but it works.

An odd thing happened today. A 911 call was placed from our second node, mentioned above (Node 2). It routed properly. But the alarm was generated on our Canadian system (Node 3). Does this make sense to anyone?