[asterisk-users] Credit Card processing machines

[Jeff LaCoursiere]

On Tue, 17 Feb 2009, Andrew Joakimsen wrote:

> On Fri, Feb 6, 2009 at 17:11, Jeff LaCoursiere <jeff at jeff.net> wrote:
>>
>> Anyone have much luck with these on ATA's?  I have a few sites that use
>> them succesfully with multi-port Audiocodes boxes, but just connected ten
>> machines to Linksys 2102s and they are very flaky.  Using u-law on a 100Mb
>> switched network that is barely utilized, then out a T1 on a Sangoma card.
>>
>> Perhaps there is some tuning on the Linksys or the credit card machine
>> itself?  Going to look into reducing the baud rate on the machines, but
>> sadly the bank has them password protected and wants to charge a
>> "reprogramming fee" :(
>
> They make credit card terminals with Ethernet -- use that instead.
>

The client's processor charges 7c/transaction over IP (plus normal 
charges), so they are quite keen to keep it working the way it was before 
I replaced their PBX ;)

As a followup, *99 prepended on any Linksys ATA does indeed make a 
difference in modem reliability.  Both their CCs and their ADT alarm 
devices now function reliably.  I also reduced the CC baud rate to 300 
baud (!), and it is rock solid now!

j