Tandem Analog Lines?

[bluemr2]

I have 2 systems (Magix 2.0) privately networked via pri. I've set up tandem trunking before using a digital connection to the CO but has anyone set up tandem calling using analog lines? Thanks

 

[merlinman]

I guess I don't understand the question.

You say you have privately networked by way of PRI, so what are you asking about the tandem Analog lines?

 

[bluemr2]

I want to have site A be able to make outbound calls using site B's analog lines. I know I can do it if site B had a PRI, but never tried it with analog lines.

 

[merlinman]

OK, lets try to clear this up one more time.

Maybe I am missing something here.

DO YOU HAVE A PRI T1 FROM A to B?

 

[glg01]

bluemr2 the answer to your question is yes. You can route calls from A out of the B site with analog lines. You have the ARS in site A pointed to the B system. Once you build the routing for the B system using the new analog lines then the extensions in A can use them. The whole idea of networking the two together is to allow you to utilize the trunks in other systems and you can build the routing as complicated as you want. Since you have the "outbound calls" from A going out in B now via digital lines then when you have extensions in B going out over your new lines then the people in A can go out over them. FRL levels can come into play from the description you have given so far but...I don't think so. Oh yeah, when you say the A and B sites are networked with a PRI?....it is really a point to point T-1 (nicknamed P2P). The Legend/Magix has a proprietary similated PRI software so most people think the T-1 between them is a PRI but it IS just a P2P. lg

 

[Dexman]

Do you have OPX or TIE lines running between the 2 locations? Could you list what modules you have at each location?

 

[glg01]

I have re-read both of bluemr2's first two entries.....and where are these questions coming from???? bluemr2 says he wants to set up some analog trunks in switch B where he already has a working PRI for outbound calls for both A and B. It sounds to me like they need just a few more lines for outbound calls and it doesn't justify adding another T-1 which would also max out switch B...or at least 72 of the possible 80. I will admit that he needs to look at the B site and be aware of his trunk limitations....

bluemr2...it is time for comment. lg

 

[dagwoodsystems]

glg01 is correct. The only thing that I'd like to add is that you may have trouble with the analog lines disconnecting properly. For one of my customers, this was a chronic problem. Calls over the analog trunks via the locally connected PBX were OK, but calls made over those same trunks via the remote PBX would frequently fail to disconnect. After long fights about disconnect supervision and whatnot, I had the customer convert the lines to ground-start. And while that caused them to lose their ability to receive Caller-ID, it did solve the problem.

I have two other customers with the same setup, and they have never experienced that problem.

Avaya tells me that the configuration described is not supported. I believe that I read a similar statement in the Networking manual as well. Even so, I'm convinced that the problem I had was a telco issue. Go for it!

Tim Alberstein

http://www.dagwoodsystems.com

 

[bluemr2]

Thanks for all your help. 1 of the sides only has 3 local lines, and apparently they are frequently all are in use so inbound callers would get busy signals. The other side has many more analog lines, so I was just going to offload outbound calling to those to keep the 3 trunks free for inbound calls. That way I don't have to add a new card for more lines, as they are out of LS ports. I have set up tandem trunking many times before, just always using PRI's. Just trying to look for any gotchas, like the disconnect issue, that might pop up.