sundance-communications.com/forum Forums TDM Business Telephone Systems Inter-Tel Telephones & Systems Programming PRI inbound/outbond

Hopefully this an easy question, I just can't seem to find the place in DB Programming... if it's even in there...

Where is the setting for PRI's or T1's on making inbound calls using trunks from the top down, and outbound calls select trunks from the bottom up?

Any info is appreciated,

Its automatic. Once you put the trunks in a trunk group, the switch will automatically give you the last trunk for outgoing (and work its way to the front). The carrier (i believe) will send in calls from the front on down.

Just a little FYI - we have a carrier (a reseller) that for some strange reason set the incoming to also start at the last channel. We chased our tails on that for quite awhile before we finally determined what was happening and why the Inter-tel switch was doing some pretty strange things. (You can monitor the channels to see if this is the case, but then the carrier needs to make the changes, as Inter-tel is locked into bottom outgoing.) Good luck.

I thought there was a way when you set up the trunk group to select Asending or Desending when you first put it in. It's been a while though so I could be way off base.

That does sound a little familiar, but i cant recall.

If you did have to change the order of outgoing channels, you could renumber the extensions of the trunks from high to low. That would put them in the trunk group backwards.

Just a quick question racer x. If you don't mind my asking, why would you want inbound calls to take trunks from highest to lowest, and outbound calls to go lowest to highest? I've only had one other person ever request that but never understood why. That's just the opposite of what is normally done.

I think I may have just said it backwards in the post as to which one I want to go up to down, or down to up. Now I'm confused on what I want. :confused:

Is there a standard and is it automatic? BTW - I'm running ver 8.224.

I know we have it setup on our existing lines. In one case we have 2 LD lines that the incoming (or outgoing) start at the top of the first, and the opposite starts at the bottom of the second. I'm just not sure if it was that way automatically or if there is a setting.

I was "asked" to make sure the one or the other starts at the top or the bottom. I'll go with whatever is standard.

Yes, there is a default and you don't have to change anything unless your provider is doing something strange. Incoming start at the top (1st channel) and outgoing start at the bottom (last channel). Works the same way with POTS lines in a trunk group. Good luck.

Maybe I'm reading this post backwards, but our defaults have always been incomming calls start at the bottom. Line 1 rings first, then Line 2, Line 3 and so on. Outgoing calls start at the top. Dialing 8 for an outside line starts with line 10, then if it's in use, Line 9, Line 8 and so on. This arrangement hopefully eliminates call collisions/glare.

Exactly! Well said. That is the way it works. (And I guess that is the trouble with talking about top and bottom - and I haven't had any Holiday spirits yet!)