Visa Credit Machine Problems on Adjunct - Help!

[tdaugirdas]

I have a small Legend R7 system with 6 MLX-10D phones. The system is wired with all 4-pairs. Two of the MLX phones have adjuncts with a single line on them that connect to the Visa machines. The Visa machines initially connect OK - but often seem to lose the connection while processing a transaction. Sometimes the transactions go through OK - more often they disconnect while processing. When tested from an MLX phone - the line in question gets good dial tone and does not disconnect. Is there something special that needs to be done (programmed) to make this work correctly? I have a third adjunct connected to a FAX machine - and this works fine. Initially the phones with the adjuncts had no supplementary power. I added supplementary power - but there was no change in the tendency to lose the connection. Lines are set to "loop start" with "reliable disconnect". Does the line for the Visa machines need to be "ground" start? Once a disconnect occurs the Visa machine tries an immediate redial - I believe before the processor recognizes the "disconnect". Has anyone had a similar problem? How did you resolve it?

Tom Daugirdas,
President
STCG, Inc.
stcg.com

 

[franke]

Wow, haven't heard this one before. I'll take it that you've tried swapping the faxes MFM with one of the cc machines. My first guess would be how the cc machines are set up. Maybe a speed issue or error checking settings? The type of trunk shouldn't make a differnce (remember most cc machines connect to pots lines). Maybe you hook up an SMDR term or monitor one of the adjuncts and see who is actually doing the disconnect, your end ord the far end.

franke

 

[tdaugirdas]

When I monitor the "line" button for the visa machines that are set up on the nearby MLX phone - you see the line button turn "green" when the machine initially connects and dials - then after a while the light goes out - before the transcation is finished - then the visa machine indicates it is dialing or redialing - but the light is still out. So - once the connection is initially lost - I don't think the processor has realized the disconnect and the visa machine ends up dialing and re-dialing into a dead line. Maybe visa can help me understand if the machines need some programming done to them (if that is even possible) to put some "pauses" into it's connection sequence.

What's weird is we swapped visa machines (between the two MLX phones and adjuncts) - and now both seem to work.

Tom Daugirdas,
President
STCG, Inc.
stcg.com

 

[Pepperz]

Try the CC machines straight off an analog port or POTS line, and see if you can get them to error. They may be the culprit.

Pepperz at newper dot net

 

[tdaugirdas]

We were using the adjuncts to avoid running an extra wire out to the Visa machines. I guess if I run a seperate wire out to the Visa machines - I would just do so directly and bypass the Legend completely - there is really no advantage of running the connection through the Legend except to save the extra wire run - and maybe occaisionally have an extra phone line available when no transactions are being conducted.

Tom Daugirdas,
President
STCG, Inc.
stcg.com

 

[Pepperz]

Meant to do the analog ports or phone line as a test of the CC machine, not as a permanent fix. If there is a bun in them, you're chasing your tail.

Pepperz at newper dot net

 

[tdaugirdas]

Good point! I'll check them out - as you suggest - and report results.

Tom Daugirdas,
President
STCG, Inc.
stcg.com

 

[ttech]

The MFM needs power (the 4th pair) so that tells us you have a 4th pair to the phone. instead split the jack and run the analog line on the 4th pair or 2nd pair and hook up the MLX extention port to the system using a 2 pair jumper (just to be safe)

~don~