[asterisk-users] Call Limit with multiple SIP extensions

[Michael Hamann]

Hello,

I´m trying to setup the following function fpr a customer and at the
moment I´m pretty stuck...

I have an Asterisk (realtime) system with about 50 SIP Phones. 4 of these
extensions have two SIP accounts behind them, so I call two SIP Accounts
via Dial(SIP/10&SIP/11).

So for example I have the extension 20 which rings the SIP Accounts 20 and
*20 (callerid is setup to 20)

exten => 20,1,Dial(SIP/20&SIP/*20)

This works so far. Now I need something like a call-limit function for
this "special" extension.

When one of the phones (20 or *20) is in use, the complete extension 20
should signal a busy to the next caller.

OK, i found the group function in asterisk and I managed to setup the
first half of the solution.

I use a macro

exten => 20,1,Macro(groupdialout,SIP/20&SIP/*20,20)

[macro-groupdialout]
exten => s,1,Set(GROUP=${ARG2})
exten => s,n,Checkgroup(1)
exten => s,n,NoOP(Active Calls: ${GROUP_COUNT()})
exten => s,n,NoOp(${CHECKGROUPSTATUS})
exten => s,n,GotoIf($["${CHECKGROUPSTATUS}" = "OVERMAX"]?100:6)
exten => s,n,Dial(${ARG1})

exten => s,100,Hangup(17)

to dial my extensions. This works on the incoming direction. But when I
dial an extension from one of my two phones the other phone is still
ringing. I also want a busy signal in this case.

I tried to increase the groupcounter on outgoing calls via:

exten => 20,1,Set(GROUP=${CALLERIDNUM})

and (to PSTN)

exten => _0X.,1,Set(GROUP=${CALLERIDNUM})
exten => _0X.,n,Dial(SIP/${EXTEN:1}@smartnode)

But I think the problem is that group only affects the channel in use - am
I right?

Maybe someone can give me a hint on how to get this working? Or has
somebody did something like that before?


Thanks Michael

----

on the Asterisk CLI it looks like this so far:

    -- Executing Set("SIP/20-08491430", "GROUP=20") in new stack
    -- Executing Macro("SIP/20-08491430", "groupdialout|SIP/4450|4450") in
new stack
    -- Executing Set("SIP/20-08491430", "GROUP=4450") in new stack
    -- Executing CheckGroup("SIP/20-08491430", "1") in new stack
    -- Executing NoOp("SIP/20-08491430", "Active Calls: 1") in new stack
    -- Executing NoOp("SIP/20-08491430", "OK") in new stack
    -- Executing GotoIf("SIP/20-08491430", "0?100:6") in new stack
    -- Goto (macro-groupdialout,s,6)
    -- Executing Dial("SIP/20-08491430", "SIP/4450") in new stack
    -- Called 4450
    -- SIP/4450-084ab3d0 is ringing
 Extension Changed 4450 new state Ringing for Notify User 10
    -- SIP/4450-084ab3d0 is ringing
    -- SIP/4450-084ab3d0 is ringing
    -- SIP/4450-084ab3d0 is ringing
    -- SIP/4450-084ab3d0 is ringing
    -- SIP/4450-084ab3d0 answered SIP/20-08491430
    -- Attempting native bridge of SIP/20-08491430 and SIP/4450-084ab3d0
 Extension Changed 4450 new state InUse for Notify User 10
    -- Executing Set("SIP/10-0849d100", "GROUP=20") in new stack
    -- Executing Macro("SIP/10-0849d100", "groupdialout|SIP/20&SIP/30|20")
in new stack
    -- Executing Set("SIP/10-0849d100", "GROUP=20") in new stack
    -- Executing CheckGroup("SIP/10-0849d100", "1") in new stack
    -- Executing NoOp("SIP/10-0849d100", "Active Calls: 1") in new stack
    -- Executing NoOp("SIP/10-0849d100", "OK") in new stack
    -- Executing GotoIf("SIP/10-0849d100", "0?100:6") in new stack
    -- Goto (macro-groupdialout,s,6)
    -- Executing Dial("SIP/10-0849d100", "SIP/20&SIP/30") in new stack
    -- Called 20
    -- Called 30
    -- SIP/30-084bfce0 is ringing
    -- SIP/20-084b7d30 is ringing

So in this case it dows not work.

On incoming calls it seems to work...

    -- Executing Set("SIP/10-08491430", "GROUP=20") in new stack
    -- Executing Macro("SIP/10-08491430", "groupdialout|SIP/20&SIP/30|20")
in new stack
    -- Executing Set("SIP/10-08491430", "GROUP=20") in new stack
    -- Executing CheckGroup("SIP/10-08491430", "1") in new stack
    -- Executing NoOp("SIP/10-08491430", "Active Calls: 1") in new stack
    -- Executing NoOp("SIP/10-08491430", "OK") in new stack
    -- Executing GotoIf("SIP/10-08491430", "0?100:6") in new stack
    -- Goto (macro-groupdialout,s,6)
    -- Executing Dial("SIP/10-08491430", "SIP/20&SIP/30") in new stack
    -- Called 20
    -- Called 30
    -- SIP/30-0849a500 is ringing
    -- SIP/20-084a7d68 is ringing
 Extension Changed 20 new state Ringing for Notify User 10
    -- SIP/20-084a7d68 is ringing
    -- SIP/20-084a7d68 is ringing
    -- SIP/30-0849a500 answered SIP/10-08491430
    -- Attempting native bridge of SIP/10-08491430 and SIP/30-0849a500
 Extension Changed 20 new state Idle for Notify User 10
 Extension Changed 4450 new state InUse for Notify User 10
    -- Executing Set("SIP/4450-084baaa0", "GROUP=4450") in new stack
    -- Executing Macro("SIP/4450-084baaa0",
"groupdialout|SIP/20&SIP/30|20") in new stack
    -- Executing Set("SIP/4450-084baaa0", "GROUP=20") in new stack
    -- Executing CheckGroup("SIP/4450-084baaa0", "1") in new stack
    -- Executing NoOp("SIP/4450-084baaa0", "Active Calls: 2") in new stack
    -- Executing NoOp("SIP/4450-084baaa0", "OVERMAX") in new stack
    -- Executing GotoIf("SIP/4450-084baaa0", "1?100:6") in new stack
    -- Goto (macro-groupdialout,s,100)
    -- Executing Hangup("SIP/4450-084baaa0", "17") in new stack

So when I dial 20 and get a connection, the extension is busy for the next
caller on extension 20.