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Q.850 causes

Q.850 cause 44: Requested circuit/channel not available

The requested circuit or channel is not available, often a specific E1/T1 channel on a PRI.

44
Q.850 name
Requested circuit/channel not available
Group
Resource unavailable
FreeSWITCH
REQUESTED_CHAN_UNAVAIL
Asterisk
HANGUPCAUSE=44
In SIP
Reason: Q.850;cause=44

Why it happens

What to check

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