asterisk users - Feb 2009 - call-limit on a per destination basis

Hello,

I use asterisk to to IAX2 trunking between London POP & Reunion Island pop.
I would like to know if it's possible to do a kind of call-limit (i.e.
restrict to XX) channels but on a per dialcode and / or destination basis.


For example:

[trunk]
; reunion proper, i want to send no more than 24 channels
exten => _0262XXXXXX,1,Dial(IAX2/mytrunk/${EXTEN})

; reunion mobile, i want to send no more than 12 channels
exten => _0692XXXXXX,1,Dial(IAX2/mytrunk/${EXTEN})
exten => _0693XXXXXX,1,Dial(IAX2/mytrunk/${EXTEN})


How would you go about it? Currently my IAX2 peer definition looks like
this:

# machine in london
[mytrunk]
type=friend
host=$reunion_ip
trunk=yes
qualify=yes
context=route

# machine in reunion island
[mytrunk]
type=friend
host=$london_ip
trunk=yes
qualify=yes
context=route

I use version Asterisk 1.4.11, production environment currently doing 25,000
minutes / day (that means if i want to upgrade i need to do it on separate
servers just in case something goes wrong).


Cheers,
Jean-Michel.
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I have no clue about IAX, but if IAX does not support it you can program 
it yourself using the GROUP and GROUPCOUNT functions.

regards
klaus

Jean-Michel Hiver wrote:
> Hello,
> 
> I use asterisk to to IAX2 trunking between London POP & Reunion Island 
> pop. I would like to know if it's possible to do a kind of call-limit 
> (i.e. restrict to XX) channels but on a per dialcode and / or 
> destination basis.
> 
> 
> For example:
> 
> [trunk]
> ; reunion proper, i want to send no more than 24 channels
> exten => _0262XXXXXX,1,Dial(IAX2/mytrunk/${EXTEN})
> 
> ; reunion mobile, i want to send no more than 12 channels
> exten => _0692XXXXXX,1,Dial(IAX2/mytrunk/${EXTEN})
> exten => _0693XXXXXX,1,Dial(IAX2/mytrunk/${EXTEN})
> 
> 
> How would you go about it? Currently my IAX2 peer definition looks like 
> this:
> 
> # machine in london
> [mytrunk]
> type=friend
> host=$reunion_ip
> trunk=yes
> qualify=yes
> context=route
> 
> # machine in reunion island
> [mytrunk]
> type=friend
> host=$london_ip
> trunk=yes
> qualify=yes
> context=route
> 
> I use version Asterisk 1.4.11, production environment currently doing 
> 25,000 minutes / day (that means if i want to upgrade i need to do it on 
> separate servers just in case something goes wrong).
> 
> 
> Cheers,
> Jean-Michel.
> 
> 
> ------------------------------------------------------------------------
> 
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Just a tip: throw extensions.conf away and use extensions.ael - much 
more easy:

_0262XXXXXX => {
   Set(GROUP()=Reunion);
   if( ${GROUP_COUNT(Reunion)} > 24) {
   NoOp(Total channels congested, retuning NOCAV);
   Congestion();
} else {
   NoOp(This channel is member of group: ${GROUP()});
   NoOp(Number of channels is ${GROUP_COUNT(Reunion)});
   Set(SPYGROUP=1003);
   Dial(IAX2/dedibox-etang-sale/${EXTEN});
   Congestion();
}



Further, I would use a macro:

macro checkMaxCallsMakro(groupid,limit) {
   if ( ${GROUP_COUNT(${groupid})} >= ${limit} ) {
     NoOp(ERROR: Limit ${hardlimit} reached for ${groupid}!);
     Hangup(34);     //Cause No. 34: no circuit/channel av. (SIP 503)
   }
   Set(GROUP()=${groupid});
}
context foobar {
   _0262XXXXXX => {
     &checkMaxCallsMakro(Reunion,24)
     Set(SPYGROUP=1003);
     Dial(IAX2/dedibox-etang-sale/${EXTEN});
     Congestion();
   }
}

regards
klaus

Jean-Michel Hiver schrieb:
> The correct syntax for GotoIf is:
> 
> exten => _0262XXXXXX,n,GotoIf($[${GROUP_COUNT(Reunion)}>24]?500)
> 
> Otherwise it seems to evaluate the string "number > 24" which
is always
> true.
> 
> Duh...
> 
> Thx
> JM
> 
> -- 
> Jean-Michel Hiver - Synapse co-founder & CTO
> GSM +262 692 828 070

Ne manque t il pas des espaces entre } > 24]          ????????
  ----- Original Message ----- 
  From: Jean-Michel Hiver 
  To: Asterisk Users Mailing List - Non-Commercial Discussion ;
klaus.mailinglists at pernau.at
  Sent: Friday, February 27, 2009 2:01 PM
  Subject: [asterisk-users] [FIXED] Re: call-limit on a per destination basis


  The correct syntax for GotoIf is:

  exten => _0262XXXXXX,n,GotoIf($[${GROUP_COUNT(Reunion)}>24]?500)

  Otherwise it seems to evaluate the string "number > 24" which is
always true.

  Duh...

  Thx
  JM

  -- 
  Jean-Michel Hiver - Synapse co-founder & CTO
  GSM +262 692 828 070 


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