atcomsystems.ca/forum Forums TDM Business Telephone Systems Mitel Telephones & Systems 200 light / T-1 capabilities

I have a school with a 200 EL that our company installed in 2001. It runs liteware release 18.

The tech that did the installation is no longer with us, and we (barely) support the customer with moves and changes. We retained the service of another mitel dealer for this project.

The project is the installation of a 9100-017-001-SA T1 card. The customer has purchased a B8ZF ESF channelized T1 with 12 active channels and about 40 DID numbers in delivered via 7 digit DTMF signaling.

Restating the obvious, I don't know a lot about the Mitel. The problem is that we can't get the T-1 to not be in alarm on the Mitel.

The school used VZ analog centrex prior to the conversion last Friday. All of their phone numbers are now ported over the the channelized facility. There is no reverse gear available.

To solve the problem until we can get some 'serious help', we terminated the T1 on a Samsung iDCS 100. The Samsung emulates the VZ centrex service on analong station cards, which are connected to the trunks of the Mitel. This workaround is working. We have the Samsung in wink/delay, DID inbound signaling, and we map the received digits to the Samsung extensions, which ring the Mitel trunks. Not a real clean installation, but it's working... Now, my real questions:

Does this Mitel with this card actually support ESF? If I connect a T-Berd to the Mitel T-1, that's what it shows, and we're error free. When we connect the T-1 from the new provider, it goes into alarm and stays there. Put the line back to the Samsung, and it works.

We have had all kind of discussions with our 'rented experts', but this is an older software release. We've hit the ceiling of the limits of their knowledge more than a few times.

The customer is not inclined to upgrade the software release on the Mitel. I can get the provider to change the line format of the T-1, say to SF or maybe even D-4, but I don't want to be chasing my tail.

My question to on this learned forum is what formats and signaling does the 200L support with release 18?

Any help is welcome...

My bad, I indicated this is a 200 Light, and it's not. It's an 200EL (the cabinets look like a microwave).

The first thing is that the part number you listed is for the Bay Control Card, not the T1 Card.
If you're using the 9109-021-000 card, that card ONLY supports SF. All of the other options you listed are supported.
If you changed the type of bay control card you're using, the newer style dual T1 module mounts as a daughter board, and will support ESF. It also has an onboard CSU. Contact me anytime if we can be of further assistance!

55 - Thanks for your help. I suspect you're right, and I wrote down the wrong card number this morning. There probably is a 021 card, there was one of those on the materials list.

What stumps me is that I got the T-Berd to show clean on ESF this morning...

So that I grasp this correctly, with rel 18, I can:

1). Have the circuit re-provisioned as SF, and inbound DTMF signalling is supported. No other changes are needed, other than programming.

2). I need to change the bay controller card and add a T-1 daughterboard. Then, ESF and inbound DTMF is supported by rel 18, and I don't have to have the T-1 re-provisioned by the local service provider.

Thanks again, I feel like I'm getting a little closer to a solution.

You've got it!!!!
Just figure out which is less of a hassle! Let me know if we can be of further help!!!

If you go with the BCCIII and dual T1 module, you also have to make sure you are optioned for a digital link in form 4. You could also use something like an Adtran TSU 120 to do the ESF to D4 conversion, it is a bit of overkill but can be gotten fairly cheap off ebay.

I think I have some 120's left over from a bank job (the good kind), so I'll have someone look for those tomorrow...