BCM and T1 Woes 2

[lgross]

I have a vendor on-site installing a BCM. We have a T1 configured with 20 voice channels. The other 4 channels are used for data.

I am being told that the BCM cannnot use the 20 channels as two way trunks. The vendor is asking us to allow them to setup 10 for inbound and 10 for outbound. Does this sound correct as far as the capabilities of the BCM?

I have looked online for reference documentation for the BCM but it seems the existing links are no longer valid. Any help would be greatly appreciated!

 

[BagsNYC]

What version BCM are you working with?

 

[lgross]

BCM400 3.6 includes a DTM module.

What I am being told is the only options available for trunks are loopstart, groundstart, DID and E&M.

 

[BagsNYC]

I don't see why you couldn't. Personally we do PRI, so I can't say that I've tested it..

Would your customer consider PRI?

 

[lgross]

At this stage of the game no PRI isn't an option. Thanks for the replies!

 

[John817]

As far as I know one of the main advantages of a PRI over T1 is that you can dynamically allocate the channels as inbound / outbound whereas with a voice T1 they have to allocated as one or the other.

 

[BagsNYC]

Don't forget Caller ID...PRI only!!

 

[phonebiz]

I'm not familiar with the BCM, but on a Norstar you can set up a T1 as E&M, assign the trunks to a line pool for outbound and still input received digits into the target lines for DID usage.

Haven't done one in a while, because I always recommend PRI. Monthly cost should be the same. If you can't set up PRI because of a timing issue, why not set up 10 in and 10 out for now and then switch when you can schedule it. That is if the E&M path doesn't work for you. Are the trunks set up for E&M wink?

 

[lgross]

Thanks again everyone for the input... didn't solve anything but hey it's nice to know people respond.

We are going to leave it for now 10 in and 10 out and see how it goes. We are looking into converting to a PRI as a possible solution but I still think we should be able to setup two way calls on any channel. Signaling is setup as wink/wink.. not E&M.

 

[senk1s]

you will be able to setup as a 2 way trunk ...
maybe CO is blocking the trunks functionality
are the incoming calls coming in as DIDs/ DNIS

 

[mroberts]

Sorry but PhoneBiz is absolutely correct!

In order to get in and out over your T-1 trunks, you will set the trunks to E&M and Auto answer. Then incoming DID digits will be received on target lines (241-492). Then the Target lines will be assigned to whatever you want to have ring.

Under trunk line data you will be able to configure each trunk/ channel to the following:

Trunk Type: E&M - The DTM has it's own protocols & signaling. This is specifically for the channel programming. E&M allows two way capabilities same as on the MICS.
Line type: Public or Privateto: or PoolA - Pool0 PoolA
Dial mode: Pulse or Tone -Tone
Prime set: DN: ___ or none
Distinct ring: None, Pattern 2, Pattern 3, Pattern 4.
Auto privacy: Y or N
Answer Mode: Auto or Manual. You MUST make this Auto so that we can automatically receive the incoming digits from Telco.
Answer with DISA: Y or N. should be N.
Use auxiliary ringer: Y or N
Signaling: WinkStart or DelayDial - should be WinkStart
ANI number: Y or N. should be set to N.

These parameters should be set for each channel that is to be used two ways. To get out each set should be assigned LinePool Access to Pool A (usually) and a LinePool Access code assigned to Pool A. They can then simply go off hook to IC tone and dial the line pool access code (9) to get out.


MRoberts
mroberts@americaii.com

http://www.a1teletronics.com