ATA Modem on a T1 Facility

[ITGPR]

We have a T1 connecting two locations sharing voice/data. From location 1 calls are originated by a PC (ATA-connected) using the T1 link, dialing 8 and location's 2 ext. number where another PC is to answer and initiate data transmision.

The situation: When location 2 answers, modems hand-shaking does not complete, and the link never materializes. IF THE CALL IS ORIGINATED FROM OUTSIDE THE INTERNAL PHONE NETWORK TO LOCATION'S 2 DN, THE LINK BECOMES ACTIVE.

Does the Compact ICS send different voltage/signaling to the ATA when calls are via the T1 (vs PTN)? If that is the case, how can it be handled in order for the ATA-modem to connect?

Is data in any way "forbiden" in a Compact ICS voice channel?

Any help is welcome...

 

[MarvO1]

You have speed limitations when using ATA. Depends on which type you are using. The ATA-2's support up to 28.8 kb
Make sure you have the ATA in tones OFF mode by doing a Link # 809 from an analog set connected to it before connecting modem.

No, data is not "forbiden" in the CICS voice channel. The channel is actually digital anyway.

MarvO said it

 

[jgideon]

You don't say how the the T1 between the two locations connects to the the CICS's... if you're using channelbanks, then you've got double analog-to-digital conversions (pc/ata to CICS, CICS to channel bank, accross t1, channelbank to CICIS, CICS to ata/PC) and while it should technially allow a link, it will probably only be a slower one. Have you tried forcing the connection speed to 9600b? Why aren't you using the data portion of the T1 to do the data transfer?

 

[Pace1]

if any of you are lookin for a real good piece of equipment to manage your data netwok as well as your voice just go look at this stuff

http://www.carrieraccess.com

and look at the Adit 600

I am not tryin to sell them and I DO NOT work for them .
We just use to have a bunch of telco provided channel banks and these we able to eliminate those as well as open the door to so many other possibilites.

They are basicly a Mini DAX allowing a digital cross connect allowing for better trouble shooting abailites as well as the power to do fraiming and linecodeing conversions.. It even does signaling conversions as long as u come out one of the FXS cards.. T1 2 T1 it just passes the signaling thu

If I said it, It has to be true.
Mario Mazza

 

[ITGPR]

The T1 is connected via a Mot.Vanguard router with 4 voice and 1 data channels. We are trying to avoid a regular call by using the T1 access; the two connecting ends for this application are not part of the data network, hardware is already in place to manage a "voice/data" call, and the data channel is not yet in use.

Yes I have tried from 1200 to 56k without a variation in the result.

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