Re: [Astlinux-users] Analogue CLIP (CallerID)

[Michael K. <mic...@ip...>]

Hi Michael

Just wondering why you need analogue modems to receive the calls from the elevators?
Have you done a SIP Debug of the traffic coming from the SPA112’s to see if the number is anywhere in the SIP Invite?
Do you know the particular standard for this in your country and is this supported by the SPA112’s?

I have never used analogue FXO for anything sorry.

Regards
Michael Knill

From: Michael Keuter <li...@mk...>
Reply to: AstLinux List <ast...@li...>
Date: Wednesday, 20 April 2022 at 2:23 am
To: AstLinux List <ast...@li...>
Subject: [Astlinux-users] Analogue CLIP (CallerID)

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):

[cid:image001.png@01D85494.98118E50][cid:image002.png@01D85494.98118E50]

[cid:image003.png@01D85494.98118E50][cid:image004.png@01D85494.98118E50]

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