Auto fallthrough, channel 'SIP/101-00000003' status is 'UNKN

  • Executing [200@default:1] NoOp(“SIP/101-00000003”, ““101” <9718485393>”) in new stack
    – Executing [200@default:2] AGI(“SIP/101-00000003”, “agi-sayani.agi”) in new stack
    – Launched AGI Script /var/lib/asterisk/agi-bin/agi-sayani.agi
    AGI Tx >> agi_request: agi-sayani.agi
    AGI Tx >> agi_channel: SIP/101-00000003
    AGI Tx >> agi_language: en
    AGI Tx >> agi_type: SIP
    AGI Tx >> agi_uniqueid: 1380690988.148
    AGI Tx >> agi_version: 11.5.1
    AGI Tx >> agi_callerid: 9718485393
    AGI Tx >> agi_calleridname: 101
    AGI Tx >> agi_callingpres: 0
    AGI Tx >> agi_callingani2: 0
    AGI Tx >> agi_callington: 0
    AGI Tx >> agi_callingtns: 0
    AGI Tx >> agi_dnid: 200
    AGI Tx >> agi_rdnis: unknown
    AGI Tx >> agi_context: default
    AGI Tx >> agi_extension: 200
    AGI Tx >> agi_priority: 2
    AGI Tx >> agi_enhanced: 0.0
    AGI Tx >> agi_accountcode:
    AGI Tx >> agi_threadid: 140559224530688
    AGI Tx >>
    – <SIP/101-00000003>AGI Script agi-sayani.agi completed, returning 0
    – Auto fallthrough, channel ‘SIP/101-00000003’ status is ‘UNKNOWN’

please help me…how to create a proper sip.conf…my system has dhcp

On the basis of the information that you have provided, the answer is read and follow the documentation, which can be found at and in the configs/sip.conf.sample file that should have come with your Asterisk code.

hai david55,

still am facing this issue…

== Using SIP RTP CoS mark 5
– Executing [100@default:1] NoOp(“SIP/2001-00000008”, ““2001” <2001>”) in new stack
– Executing [100@default:2] Answer(“SIP/2001-00000008”, “”) in new stack
> 0x7fbb5c0306f0 – Probation passed - setting RTP source address to
– Executing [100@default:3] AGI(“SIP/2001-00000008”, “agi-sayani2.agi”) in new stack
– Launched AGI Script /var/lib/asterisk/agi-bin/agi-sayani2.agi
[Oct 2 17:45:40] NOTICE[3685][C-00000008]: channel.c:4257 __ast_read: Dropping incompatible voice frame on SIP/2001-00000008 of format ulaw since our native format has changed to (gsm|h263)
– <SIP/2001-00000008>AGI Script agi-sayani2.agi completed, returning 0
– Auto fallthrough, channel ‘SIP/2001-00000008’ status is ‘UNKNOWN’

Please help me

You have a broken SIP peer as it is using a codec that was not agreed in the initial codec negotiation.

You could try telling Asterisk to allow alaw, but it still looks as though the peer is broken.

See … nformation for more information on the detail you would need to collect.

dear david55,

still the problem exist.

Can u give detailed information to resolve this…issue…earler this issue was not there

Replace the SIP peer with one that works.