Joshua Kinard wrote:
> Another attached text file shows what iaxmodem is doing during all of this.
> Something about adjusting skew.
>
> [2008-02-15 17:11:12] Adjusting skew to -50.
> [2008-02-15 17:11:12] Adjusting skew to -100.
> [2008-02-15 17:11:12] Adjusting skew to -150.
> [2008-02-15 17:11:12] Adjusting skew to -200.
> [2008-02-15 17:11:12] Adjusting skew to -250.
There is no mechanism for iaxmodem to pull clocking right from Asterisk
other than examining the IAX2 timestamps. So in the event that iaxmodem
isn't getting voice frames from Asterisk iaxmodem is left to use
clocking solely from the system clock... which may likely not be in-sync
with the T1 clocking... and so iaxmodem the "skew" messages you see is
an attempt by iaxmodem to compensate for a clock skew between the system
clock and the timestamps on the IAX2 frames... but because iaxmodem
isn't getting any voice frames you get a run of these skew messages
until the call disconnects.
> Added, how does this look?
>
> exten => s,1,Dial(IAX2/iaxmodem0/${EXTEN})
> exten => s,2,Busy
> exten => s,3,Hangup
>
Better. :-)
Thanks,
Lee.
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