[Astlinux-users] Analogue CLIP (CallerID)

[Michael K. <li...@mk...>]

Hi list,

I am trying to install an Asterisk PBX for an elevator emergency central in Germany.
The callees are 6 analogue modems who receive calls from the elevators.

The main issue is that the modems need to identify the elevator via a so called analogue CLIP (Calling Line Identification Presentation) where the calling number is shown to the receiving modem.
It is not the Asterisk CALLERID(num) but a special "message" which is transfered for analogue phones between the first 2 ringings (but I think this is generated from the CALLERID(num)). 
There are several different methods for that, that can be set in the ATA (Cisco SPA112, latest EOL firmware):





I tried every possible combination of "Caller ID Method" and "Caller ID FSK Standard", but without success.

Has anybody on the list made experiences with analogue CLIP?

Michael

http://www.mksolutions.info