>> The alarm industry still makes use of AMPS cell phone systems for
>> connectivity from their client?s premises. In March 2006 an Alarm
>> Industry Communications Committee petitioned the FCC to extend the AMPS
>> ?sunset? date by two years to February 2010. They asserted that there
>> were more than a million analog alarm radios and they say that there
>> just isn?t enough time to change all of them out by February 2008.
>> Never mind that they have already had several years to change their
>> equipment. One of my ?mottos? is: Lack of planning on your part does
>> not constitute an emergency on my part.
>The alarm industry seems to always be behind the power curve. Some of
>them still use dial pulse instead of DTMF for wireline dialing.
It wasn't all that many years ago that the phone companies charged a premium for DTMF dialing, which adds up over time.
For an automated application, using DTMF may speed up your dialing by a few seconds, which really dosen't matter in the end.
I recall that one of the other arguments that the alarm industry used was that the manufacturers had been very slow in making replacement products available, and that replacement equipment was still in short supply. In other words, they could not do upgrades because the equipment was not available.