Analog technologies such
as copper phone lines are becoming more costly to maintain, and are
therefore more expensive for the end user.
In
some cases, they are simply non-existent. Analog alarm dialers are no
exception. Many businesses and now even new residential subdivisions are
moving to fibre to the door.
This means no analog phone lines, and VoIP for communications.
The problem with VoIP for alarm dialers is
that due to many of the compression techniques used, the handshake,
DTMF, and kiss-off tones are often completely lost on transmission.