Failed To Find Existing Extension

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Asterisk Users 6 Comments

Hi all

some how I’m getting confused: it seems I clobbered incoming calls from my sip provider. I can not imagine that my upgrade from 15.3 to 15.5 could be related

I’m certain that dialling my own number, results in reaching asterisk, from my tcpdump.

And on the asterisk console I get:
pbx*CLI>
== Using SIP RTP CoS mark 5
> 0x7f49ac54c040 — Strict RTP learning after remote address set to: 185.29.203.27:62474
[Sep 8 22:12:50] NOTICE[835][C-00000028]: chan_sip.c:26513
handle_request_invite: Call from ‘77707057984’ (185.29.203.27:5060) to extension ‘31705680837’ rejected because extension not found in context
‘[0705680837]’. pbx*CLI>

Which is strange, as the first lines from the dialplan for this context are:
[0705680837]

exten => s,1,NooP(Default general incoming on CC)
same => n,Answer();
same => n,Background(dit_is_het_nummer_van_de_familie_witvliet)
same => n,WaitExten(2)

exten => i,1,NooP(Invalid general incoming on CC)
same => n,Answer
same => n,Playback(pbx-invalid)
same => n,,Hangup

exten => 31705680837,1,NooP( Incoming 31705680837 on CC)
same => n,Answer();
same => n,Background(dit_is_het_nummer_van_de_familie_witvliet)
same => n,Wait(1)
same => n,Hangup()

and settings are up-to-date; when i do:
pbx*CLI> dialplan show 31705680837@0705680837
[ Context ‘0705680837’ created by ‘pbx_config’ ]
‘31705680837’ => 1. NooP( Incoming 31705680837 on CC)
[extensions.conf:625]
2. Answer()
[extensions.conf:632]
3. Background(dit_is_het_nummer_van_de_familie_witvliet)
[extensions.conf:633]
4. Wait(1)
[extensions.conf:634]
5. Hangup()
[extensions.conf:635]
‘_X.05680837’ => 1. NooP(general S Incoming *5680837 on CC)
[extensions.conf:649]
2. Answer()
[extensions.conf:650]
3. Background(dit_is_het_nummer_van_de_familie_witvliet)
[extensions.conf:651]
4. Wait(1)
[extensions.conf:652]
5. Hangup()
[extensions.conf:653]
‘_X.’ => 1. NooP(general incoming on CC)
[extensions.conf:620]
2. Answer()
[extensions.conf:621]
3. Background(dit_is_het_nummer_van_de_familie_witvliet)
[extensions.conf:622]
4. WaitExten(2)
[extensions.conf:623]
-= 3 extensions (14 priorities) in 1 context. =-
(yeah, i know, last one is pretty desperate)

Still, asterisk answers
22:03:43.608225 IP (tos 0x0, ttl 64, id 35247, offset 0, flags [none], proto UDP (17), length 476)
192.168.0.25.5060 > 185.29.203.27.5060: SIP, length: 448
SIP/2.0 404 Not Found
Via: SIP/2.0/UDP
185.29.203.27:5060;branch=z9hG4bKf4fd.4361f417.0;received=185.29.203.27;rport=5060
From: ;tag=d4qpms6vsntnh6bj.o
To: ;tag=as7d7a0cb7
Call-ID: SBC32.261.6202722
CSeq: 881 INVITE
Server: Asterisk PBX 15.5.0
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: replaces, timer
Content-Length: 0

So, tcpdump and *-logging seems to match with each other, but not with my dialplan 🙁

Any suggestion how I should examine this?

Kind regards, Hans.

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6 thoughts on - Failed To Find Existing Extension

  • You have two commas there, which is not right, and might be a problem?

    So, that is line 625…

    And then it continues with lines 632..635??

    The next context occupies lines 649..653, okay.

    And then finally we have lines 620..623

    1. Try removing one of the two commas.

    2. Take a copy of your dialplan, and then strip out *everything* except the one context and the one number you want to match:

    [0705680837]
    exten => 31705680837,1,NooP( Incoming 31705680837 on CC)
    same => n,Answer();
    same => n,Background(dit_is_het_nummer_van_de_familie_witvliet)
    same => n,Wait(1)
    same => n,Hangup()

    3. Of course, make sure your sip.conf points this provider at the context
    (although that does seem to be working from the console output).

    4. Turn on debug logging, not just verbose.

    Regards,

    Antony.

    —
    What’s brown, lies in the grass, and smokes?
    A tiny fireplace.
    (Sorry, this joke only really works in German).

    Please reply to the list;
    please *don’t* CC me.

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  • dialplan show 0705680837
    [ Context ‘0705680837’ created by ‘pbx_config’ ]
    ‘31705680837’ => 1. NooP( Incoming 31705680837 on CC)
    [extensions.conf:610]
    2. Answer()
    [extensions.conf:611]
    3. Background(dit_is_het_nummer_van_de_familie_witvliet)
    [extensions.conf:612]
    4. Wait(1)
    [extensions.conf:613]
    5. Hangup()
    [extensions.conf:614]

    -= 1 extension (5 priorities) in 1 context. =-
    pbx*CLI>

    Debug & verbose at 7, but still:pbx*CLI>

    == Using SIP RTP CoS mark 5
    > 0x7f49ac23c470 — Strict RTP learning after remote address set to: 185.29.203.27:43036
    [Sep 10 13:16:17] NOTICE[835][C-0000002d]: chan_sip.c:26513
    handle_request_invite: Call from ‘77707057984’ (185.29.203.27:5060) to extension ‘31705680837’ rejected because extension not found in context
    ‘[0705680837]’. pbx*CLI>

    Part of my sip.conf

    [0705680837]
    type=peer context=[0705680837]
    nat=force_rport,comedia username=77707057984
    fromuser=0705680837
    host=185.29.203.27
    secret=*************
    canreinvite=no dtmfmode=inband insecure=invite disallow=all allow=alaw,gsm,ulaw qualify=yes relaxdtmf=yes directmedia=no

    /var/log/asterisk/messages:
    [Sep 9 11:50:18] NOTICE[835][C-0000002a] chan_sip.c: Call from
    ‘77707057984’ (185.29.203.27:5060) to extension ‘31705680837’ rejected because extension not found in context ‘[0705680837]’.
    [Sep 9 11:50:49] NOTICE[835][C-0000002b] chan_sip.c: Call from
    ‘77707057984’ (185.29.203.27:5060) to extension ‘31705680837’ rejected because extension not found in context ‘[0705680837]’.
    [Sep 10 10:39:03] NOTICE[835] chan_sip.c: Peer ‘0705680837’ is now Lagged. (2022ms / 2000ms)
    [Sep 10 10:39:13] NOTICE[835] chan_sip.c: Peer ‘0705680837’ is now Reachable. (12ms / 2000ms)
    [Sep 10 13:09:54] NOTICE[835][C-0000002c] chan_sip.c: Call from
    ‘77707057984’ (185.29.203.27:5060) to extension ‘31705680837’ rejected because extension not found in context ‘[0705680837]’.
    [Sep 10 13:16:17] NOTICE[835][C-0000002d] chan_sip.c: Call from
    ‘77707057984’ (185.29.203.27:5060) to extension ‘31705680837’ rejected because extension not found in context ‘[0705680837]’.

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  • Ha! You’re right… so simple 🙂

    Antony.

    —
    Late in 1972 President Richard Nixon announced that the rate of increase of inflation was decreasing. This was the first time a sitting president used a third derivative to advance his case for re-election.

    – Hugo Rossi, Notices of the American Mathematical Society

    Please reply to the list;
    please *don’t* CC me.

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  • Indeed, just corrected it.

    It had to be something I did myself (as it was working before tidying up) but never thought such a mistake was hard to pinpoint. Thanks very much, now I can continue exploring * again.

    Hans

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