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A channelbank converts multiple lines into one higher speed line.
For example, 24 ordinary analog telephone lines into one digital T1 line.

Re: == Auto fallthrough, channel 'Zap/41-1' status is 'UNKNOWN'
by spamblock Wed 08 of Oct, 2008
You might want to set "autofallthrough=no" in your extensions.conf, but this will only change the cause of hangup in the CLI. What is happening here is proper behavior as all steps are taken and you configured nothing to wait and keep the line active. Look into WaitExten, f.e. by adding the option "exten => 9,4,WaitExten(15)"
very strange server response G730 forbidden
by hugomagic Tue 07 of Oct, 2008
Please anybody who ever seen a response from one Asterisk server back to Asterisk Outbound -saying G730 protocol not allowed
We use a Asterisk trixbox sip platform to route calls to another Asterisk server overseas G729 and sometimes the calls dont go
Sometimes the receiving server do not even see the hits -some other time the error message is -Forbidden.
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== Auto fallthrough, channel 'Zap/41-1' status is 'UNKNOWN'
by mjmann Tue 07 of Oct, 2008
Hi all,
I'm having trouble getting a timeout function to work in my asterisk 1.4.21.2 IVR extension configuration. The introduction and greeting playback OK and the invalid digit playback works OK.
But, while waiting for timeout to be routed to operator I receive the following debug message.
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