kik

I have three switches. Two of those are connected via a point-to-point T1. The third one is on its own. How do I make call from switch #1 go over switch # 2 when destined for switch # 3.

Any information will be appreciated.
Thank you!

nexSIP

Give an example of what you want to do.. there are a lot of options.
I would assume the T1 is a voice T1 already trunked correct?

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kik

Yes, the T1 is voice T1.
Here is an example of what I am trying to do:
Calls from switch 1 and switch 2 to switch 3 go over the public network. However, we get a discount on the calls made from switch 2 to switch 3. Since there is a private line between switch 1 and 2, I thought I can route calls from switch 1 to switch 3 through switch 2.

I hope this makes sense.
Thank you.

koelemon

Yes you can do that, it will be a little touchy though. Basically you need to identify the numbers (area codes, local prefixes, etc) that you want to do this with and make specific entries in ARS in switch 1 for them. You would make a route pattern that points to your T1 to switch 2 and insert a 9 on the route pattern as well.

Next, you basically do the same thing on switch 2, make the same specific entries to match the number coming from switch 1 in switch 2's ARS tables and again, point them towards a new route pattern directed at switch 3 and again insert a 9 on it.

That is the short of it, you will definitely have to "tweak" it a little and play around to make it work, I reccomend trying one number specifically to test until you get the hang of it to confuse matters a little less. You may run into various COR and Trunk to Trunk issues alng the way but those are bridges you really need to deal with as you cross them.

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jisbell

I did this exact thing several months ago. I have 4 buildings connected via point to point circuits as well as public circuits out to "the real world". We had one public circuit in particular that kept going down. I routed the calls over the point to point T1 and out another switch. Works great.
Now I have all 4 locations set to rollover outbound calls over the point to point if the main building PRi is down.


Regards
Joe

nexSIP

If it were me i would in the main PBX make a route to send for example 801555 calls to a route pattern that goes to the remote PBX. then have that remote PBX take those number and make another ARS entry to point to PBX #3. Then PBX #3 will route by default out the local trunk.

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