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Q.850 causes

Q.850 cause 27: Destination out of order

Destination out of order: the far end cannot be reached because its interface is not working.

27
Q.850 name
Destination out of order
Group
Normal events
FreeSWITCH
DESTINATION_OUT_OF_ORDER
Asterisk
HANGUPCAUSE=27
SIP response from a gateway
502 Bad Gateway
In SIP
Reason: Q.850;cause=27

Why it happens

What to check

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