[Asterisk-Dev] Distinctive ring inbound on FXO

[John Todd]

>I am trying to implement the detection of distinctive ring on the
>an FXO interface. This can be used, clearly, to redirect the call
>to a different place based on the called number. Since the called
>number is not available now, I propose to add some new onfiguration
>variables to zapata.conf, namely did1, did2 and did3 to statically
>configure them. Then, in chan_zap.c, fill in the extension in
>chan->exten before control is passed to ast_pbx_run().
>
>The question is, how to determine if a distinctive ring has been
>recieved, and how to determine *which* distinctive ring if there
>are more than one configured?
>
>To begin with, I will try to make it work with only two numbers
>(my POTS line has only two numbers anyway, so it's sufficient
>for me right now), and kludge it in around line 4379 where the
>fix to make Caller ID work with distinctive ring is, but
>something tells me this is not the right way to do it.
>
>Any advice from someone who knows about dealing with zaptel
>hardware on this level?
>
>Thanks,
>-w

William -
   I would suggest modifying zaptel.conf and mapping Bellcore-dr* 
(where * is a number 1-5) signals to a specific DID, more or less as 
you describe.  Something like this:

bellcore-dr1=s
bellcore-dr2=2125551234
bellcore-dr3=2126667890

   Of course, if a bellcore-dr* is not specified, then it goes to "s", 
but you could also specifically assign "s" to a particular ring type 
if you were being thorough.

   You can find distinctive ringing parameters (here in North America, 
at least) specified in Bellcore/Telcordia GR-506-CORE.


References:

http://www.telcordia.com/products_services/conseng/test_analysis/labaccess/gr-listing.html
http://www.google.com/search?num=50&hl=en&lr=&ie=ISO-8859-1&newwindow=1&safe=off&q=%22bellcore-dr1%22&btnG=Google+Search

Order information:
http://telecom-info.telcordia.com/site-cgi/ido/docs.cgi?ID=106234752D000801&KEYWORDS=gr-506-core&TITLE=&DOCUMENT=&DATE=&CLASS=&COUNT=1000&x=0&y=0


JT