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Q.850 causes

Q.850 cause 127: Interworking, unspecified

Interworking, unspecified: a problem where networks or protocols meet, often SIP to ISUP, without more detail.

127
Q.850 name
Interworking, unspecified
Group
Protocol errors
FreeSWITCH
INTERWORKING
Asterisk
HANGUPCAUSE=127
SIP response from a gateway
500 Server Internal Error
Produced from SIP codes
413, 414, 416, 420, 421, 423, 505, 513
In SIP
Reason: Q.850;cause=127

Why it happens

What to check

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