Last spring, I installed asterisk on a server with static ip outside my
house and got it communicating with SPA3102 inside my house.
Over the summer I read thru Asterisk TFoT and got some examples working.
I installed phpagi with festival and managed to construct a simple
system where I do database lookup based on user input (dept#) and
respond with dept name and telephone number from database. Wow!
In the fall, I saw reference on this list to freephoneline.ca (fpl) and
got that working.
But when it comes changes in extensions.conf; I just don't get it!
So far, I have been able to take simple examples for extensions.conf and
make them work in my context; but each time I try to extend the
functionality within extensions.conf, I get stumped.
In the fpl example that Peng Li posted to this list in mid-December; he had:
[fpl_in]
exten => _12891234567/_800.,1,Hangup
exten => _12891234567/_866.,1,Hangup
exten => _12891234567/_877.,1,Hangup
exten => _12891234567/_888.,1,Hangup
exten => _12891234567/_1800.,1,Hangup
exten => _12891234567/_1866.,1,Hangup
exten => _12891234567/_1877.,1,Hangup
exten => _12891234567/_1888.,1,Hangup
exten => _12891234567,1,Dial(SIP/2001&SIP/2002&SIP/2003&SIP/2004,${RT})
exten => _12891234567,n,Goto(in_fpl-${DIALSTATUS},1)
exten => _12891234567,n,Hangup
exten => _in_fpl-.,1,Hangup(16)
I could find no reference to '/' in first parm to exten in TFoT. I did
some reading and found that callerid comes after '/'. I deduced from
this (perhaps incorrectly) that the 800/866/877/888 entries block
incoming calls from tollfree numbers.
I figured out the Dial() example appears to be some kind of call-forward
function. I changed it to Dial(SIP/19999999...@fpl,60,) and sure
enough; I can call anywhere in Canada using fpl as long as I change
9999999999 to the number I want to reach before I actually dial my own
fpl number. It works, but I'd some more flexibility.
As early as last summer I was thinking about a setup that looks the same
thing that Apa Minerala mentioned in mid-December when he gave a link to
canadafreecalls.com
OK, finally to the point; responses can freely cut everything before this.
My goal is to allow selected callers enter a PIN number (PIN depends on
callerid) and they can dial any Canadian telephone number using fpl.
From previously mentioned examples, I have ('XXXX' are really numbers):
exten => _1226289XXXX,n,Dial(SIP/1519702x...@fpl,60,)
which forwards calls to 1519870XXXX when I dial 226289XXXX. As a first
step towards my goal; my first attempt was to change this to:
exten => _1226289XXXX/_1519455.,n,Dial(SIP/1519702x...@fpl,60,)
Using _1519455. or _519455. produces same results. When I dial
226289XXXX from 519455XXXX, I get:
[Jan 16 09:45:13] NOTICE[15707]: chan_sip.c:17962 handle_request_invite:
Call from '1226289XXXX' to extension '1226289XXXX' rejected because
extension not found.
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