asterisk users - Mar 2006 - Asterisk Disconnecting after 30sec when someone leaving VM

Hello, I have started having a strange problem.
Asterisk is connected via 4 analog lines to  PSTN and
we have SIP phones internally. All was working fine
but recently each time a user calls from PSTN and when
he is leaving a voicemail for someone, the caller gets
disconnected after 30 secs. We have AMP installed.
This is reproducible and is happening always. It seems
that Asterisk is disconnecting because of a "silence"
of 10 secs. But that is not case because the caller is
still leaving a message. When calling from a SIP to
SIP phone, this issue does not occur. 



Here is a log:
-----

    -- Executing VoiceMail("Zap/3-1", "u533") in new
stack
    -- Playing
'/var/spool/asterisk/voicemail/default/533/temp'
(language 'en')
    -- Playing 'vm-intro' (language 'en')
    -- Playing 'beep' (language 'en')
    -- Recording the message
    -- x=0, open writing: 
/var/spool/asterisk/voicemail/default/533/INBOX/msg00
    -- x=1, open writing: 
/var/spool/asterisk/voicemail/default/533/INBOX/msg00
    -- x=2, open writing: 
/var/spool/asterisk/voicemail/default/533/INBOX/msg00
    -- Recording automatically stopped after a silence
of 10 seconds
    -- Playing 'auth-thankyou' (language 'en')
    -- Executing Hangup("Zap/3-1", "") in new stack

  == Spawn extension (macro-vm, s-NOANSWER, 2) exited
non-zero on 'Zap/3-1' in m
  == Spawn extension (macro-exten-vm, s, 8) exited
non-zero on 'Zap/3-1' in macr
  == Spawn extension (aa_1, 240, 1) exited non-zero on
'Zap/3-1'
    -- Executing Hangup("Zap/3-1", "") in new stack
  == Spawn extension (aa_1, h, 1) exited non-zero on
'Zap/3-1'
    -- Hungup 'Zap/3-1'
    -- Hungup 'Zap/1-1'

---------------

Any pointers/suggestions will be appreciated.

Dave

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I had very mysterious hangups of PSTN outbound calls which I traced  
to zapata.conf.  I had increased rx_gain = 10 and tx_gain = 10  
because volume was always low because Polycom phone was always  
resetting the volume.  Anyway, I patched my sip.cfg for Polycom so my  
volume would stay at the user's setting, and reset the zap gains to  
0, and my hangups went away.  [Maybe the high gain was causing an  
output to saturate and a small amount of silence looked like a  
polarity reversal  - SWAG].

On Mar 20, 2006, at 2:29 PM, Dave wrote:
> Hello, I have started having a strange problem.
> Asterisk is connected via 4 analog lines to  PSTN and
> we have SIP phones internally. All was working fine
> but recently each time a user calls from PSTN and when
> he is leaving a voicemail for someone, the caller gets
> disconnected after 30 secs. We have AMP installed.
> This is reproducible and is happening always. It seems
> that Asterisk is disconnecting because of a "silence"
> of 10 secs. But that is not case because the caller is
> still leaving a message. When calling from a SIP to
> SIP phone, this issue does not occur.
>
>
>
> Here is a log:
> -----
>
>     -- Executing VoiceMail("Zap/3-1", "u533") in new
> stack
>     -- Playing
> '/var/spool/asterisk/voicemail/default/533/temp'
> (language 'en')
>     -- Playing 'vm-intro' (language 'en')
>     -- Playing 'beep' (language 'en')
>     -- Recording the message
>     -- x=0, open writing:
> /var/spool/asterisk/voicemail/default/533/INBOX/msg00
>     -- x=1, open writing:
> /var/spool/asterisk/voicemail/default/533/INBOX/msg00
>     -- x=2, open writing:
> /var/spool/asterisk/voicemail/default/533/INBOX/msg00
>     -- Recording automatically stopped after a silence
> of 10 seconds
>     -- Playing 'auth-thankyou' (language 'en')
>     -- Executing Hangup("Zap/3-1", "") in new stack
>
>   == Spawn extension (macro-vm, s-NOANSWER, 2) exited
> non-zero on 'Zap/3-1' in m
>   == Spawn extension (macro-exten-vm, s, 8) exited
> non-zero on 'Zap/3-1' in macr
>   == Spawn extension (aa_1, 240, 1) exited non-zero on
> 'Zap/3-1'
>     -- Executing Hangup("Zap/3-1", "") in new stack
>   == Spawn extension (aa_1, h, 1) exited non-zero on
> 'Zap/3-1'
>     -- Hungup 'Zap/3-1'
>     -- Hungup 'Zap/1-1'
>
> ---------------
>
> Any pointers/suggestions will be appreciated.
>
> Dave
>
> __________________________________________________
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> Tired of spam?  Yahoo! Mail has the best spam protection around
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Bill

William M. Conlon, P.E., Ph.D.
To the Point
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