Every ATA I have tested works just fine with dial phones. If you're as geeky and as fleet of finger as I am, you can test this by toggling the switch-hook quickly.

On 08/11/2015 04:08 PM, Chuck McCown wrote:
I am compiling a list of sip/voip issues I have run into over the years. I am going to get beaten up by some bureaucrats tomorrow morning and I want to have a list to defuse them before the oral part of the proceedings start.
I am going to say that ATA/SIP/VOIP is not suitable for the following:
Fax Machines (don’t even get me started on this, tried to do a doctor’s office and pharmacy once....) TDD The teminal that deaf people use. Does anyone know if a TDD will work on a garden variety ATA? I don’t have one I can test with.
Dial up modems....
Fire Alarm control panels (the monitoring companies refuse to even hook it up if you tell them it is VOIP).
Burglar Alarms .... ditto
I wonder about heart monitors that you wear and have the results phoned in. Dial phones. I have never tried to use a pulse dial phone on an ATA/SIP unit. I wonder if it would work.
Any others?
!DSPAM:2,55ca8069295195681978812!

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