[asterisk-users] Credit Card processing machines

[Jonn Taylor]

Jeff LaCoursiere wrote:
> On Tue, 17 Feb 2009, Jerry Jones wrote:
>
>   
>> Most alarm systems around here use bursts of dtmf - not an actual
>> modem to communicate with alarm central.
>>
>> Yes I have seen these have many issues with voip in the path.
>>
>>     
>
> You mean they communicate with an IVR?  Seems like that could be made 
> solid with the right DTMF options enabled on the ATA.
>
> FWIW that makes a lot more sense than a modem connection.
>
> j
>
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If you are in the US, ANY life safety system has to be connected to a 
dedicated copper POTS line. VOIP is NOT ok to use for this. It is in the 
NFPA.


Jonn
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