T1 wink start OFF HOOK routing 1

[dgillson]

In reference to thread689-791762,
I have an existing T1 with channels configured as Ground start.

The new carrier can on only provide wink w/ DNIS. I thought there was a way to off hook route these channels on inbound by using type= AUTO and basicly emulate the operation of ground start channels.

 

[merlinman]

What they are telling you is they are going to send you DIGITS that have to MATCH SOMETHING in your Dial Plan.

So, what digits are they sending, and how are your extensions numbered?

 

[SYQUEST]

The type = AUTO has nothing to do with Ground-start. You will need to reprogram your channels as TIE E/M in order for this to work.

To get an overview read the System Planning document. You can download it from the Avaya website.

Hope this helps!

....JIM....

 

[SYQUEST]

I read your reference thread, and I have a comment in relation to DS1 and 5ESS and DMS100, etc type CO switches. The DS1(T1) that comes out of these switches are provisioned on the TRUNK side of the switch ONLY! (Because they are trunks!) Not the LINE side. The only way to get the Line side on DS1 channels is with a Channel Bank or multiplexer that has DS0 capability. It has always been that way!

Now in order to "mix" DID service and "Line" service on the same DS1 you would use a channel bank and FXO channel units for the lines and 4-Wire E/M channel units back-to-back for the DID trunks, or use a DACS and digitally cross-connect the DS1 channels from the switch to the customer DS1 channels and the same for the Channel Bank for the lines.

For everyones information, PRIMARY ISDN is provisioned as a trunk service. It comes from the "trunk side" of the switch and it has "trunk group" attributes, ie: Trunk Group Number, Route Index, and Trunk Members. B channels are trunks. D channels are trunks. Their use may be specialized for the info that is passed on them, but they are still trunks! So PRI service has two Trunk Groups: B channels and D channels. Each one has its own Trunk Group Number (TGN). This is how Telco busies and unbusies the channels or trunks, by the use of the TGN and Member Number. The 4ESS, 5ESS, and DMS series switches all use this type of architecture.

....JIM....

 

[dgillson]

SYQUEST
I hear this a lot from the carriers "you need a channel bank to provide FXS" ( loop/ground start).
Intresting that some carriers have no problem deliverying the channels in is fashion when others have no idea on how to do it.
Since the Legend can be programmed to look like a channel bank - i.e. type=ground or loop start I don't understand the problem Some carriers flat out refuse to deliver channels in any other form but wink when connected directly to a PBX DS1 card.

 

[SYQUEST]

Over the years I have run into the same roadblocks from carriers/providers. Some of them just don't want the customer to save money, or they are to lazy to do the provisioning. Other limitations may be a tariff issue, or just supidity, or they just want to think in the "one size fits all" mentality.

A similar issue I have had with Northern Telecom and others over the years has to do with loop-start disconnect supervision. They would not design their DE4 FXO channel units to provide it. The same with the SL1/Meridian series PBXs, you always ran into limitations when using loop-start on that stuff, because they would NOT add the circuit or software to recognize it or send it.

On the SL1/Meridian NT made a DS1 module for trunks, but you could not put stations on any channels. Then they came out with a separate module for stations only. (Why make a separate module??)

Western Electric/AT&T/Lucent/Avaya was not always safe from my rath in this regard either over the years.

Another story is Sprint (CENTEL) Las Vegas. If you have DID service in one CO area and you move to a part of town that is served from a different CO, they won't let you "FX" the DID trunks to the different CO so you can keep the same number blocks, unless you put them on a DS1. Otherwise they want to change your numbers.

Sometimes you can figure ways to get around some of these limitations by finding loopholes in their tariffs or someone that has a similar service and get them to make a minor change to benefit your customers' needs.

....JIM....