Extensions.conf -_. - I do know what I'm doing?

General Help
1

Here is the problem with using _. - it matches h !

[from-sip-external]
;give external sip users congestion and hangup
; Yes. This is _really_ meant to be _. - I know asterisk whines about it, but 
; I do know what I'm doing. This is correct.
exten => _.,1,NoOp(Received incoming SIP connection from unknown peer to ${EXTEN})
exten => _.,n,Set(DID=${IF($["${EXTEN:1:2}"=""]?s:${EXTEN})})
exten => _.,n,Goto(s,1)
exten => s,1,GotoIf($["${ALLOW_SIP_ANON}"="yes"]?from-trunk,${DID},1)
exten => s,n,Set(TIMEOUT(absolute)=15)
exten => s,n,Answer
exten => s,n,Wait(2)
exten => s,n,Playback(ss-noservice)
exten => s,n,Playtones(congestion)
exten => s,n,Congestion(5)
exten => h,1,NoOp(Hangup)
exten => i,1,NoOp(Invalid)
exten => t,1,NoOp(Timeout)

Here is how execution of a call looks like:

    -- Executing [[email protected]:1] NoOp("SIP/10.168.0.228-0000011d", "Received incoming SIP connection from unknown peer to 99999") in new stack
    -- Executing [[email protected]:2] Set("SIP/10.168.0.228-0000011d", "DID=99999") in new stack
    -- Executing [[email protected]:3] Goto("SIP/10.168.0.228-0000011d", "s,1") in new stack
    -- Goto (from-sip-external,s,1)
    -- Executing [[email protected]:1] GotoIf("SIP/10.168.0.228-0000011d", "0?from-trunk,99999,1") in new stack
    -- Executing [[email protected]:2] Set("SIP/10.168.0.228-0000011d", "TIMEOUT(absolute)=15") in new stack
    -- Executing [[email protected]:3] Answer("SIP/10.168.0.228-0000011d", "") in new stack
    -- Executing [[email protected]:4] Wait("SIP/10.168.0.228-0000011d", "2") in new stack
    -- Executing [[email protected]:5] Playback("SIP/10.168.0.228-0000011d", "ss-noservice") in new stack
    --  Playing 'ss-noservice.alaw' (language 'en')
    -- Executing [[email protected]:6] PlayTones("SIP/10.168.0.228-0000011d", "congestion") in new stack
    -- Executing [[email protected]:7] Congestion("SIP/10.168.0.228-0000011d", "5") in new stack
    -- Executing [[email protected]:1] NoOp("SIP/10.168.0.228-0000011d", "Hangup") in new stack

We should be done at this point, but there are more matches so the dialplan continues:

    -- Executing [[email protected]:2] Set("SIP/10.168.0.228-0000011d", "DID=s") in new stack
    -- Executing [[email protected]:3] Goto("SIP/10.168.0.228-0000011d", "s,1") in new stack
    -- Goto (from-sip-external,s,1)
    -- Executing [[email protected]:1] GotoIf("SIP/10.168.0.228-0000011d", "0?from-trunk,s,1") in new stack
    -- Executing [[email protected]:2] Set("SIP/10.168.0.228-0000011d", "TIMEOUT(absolute)=15") in new stack
    -- Executing [[email protected]:3] Answer("SIP/10.168.0.228-0000011d", "") in new stack
2

There was an attempt to fix the issue in 2006 - http://www.freepbx.org/trac/changeset/1916

3

What is your FreePBX version?
I am curious as this was fixed in 2.6 (r8261), please see ticket #3848

4

I am on 2.5 (trixbox 2.8)

5

Well, then you are not running the Real FreePBX

trixbox “forked” version 2.5 of FreePBX and decided to call that PBXconfig version 5.5. FreePBX 2.5 is out of support

Your only options are:
Complain over at trixbox and ask them to fix it (I doubt they would)
Un-trix your trixbox and install FreePBX 2.8.
Install another distro

Please see this thread for a possible solution:
http://www.freepbx.org/forum/freepbx/installation/upgrading-to-freepbx-2-8-from-2-5-with-a-new-trixbox-2-8-0-4-install

However, there is a great risk that whenever you do an update in trixbox it will revert to PBXconfig 5.5 and really mess up your phone server.

6