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Q.850 causes

Q.850 cause 42: Switching equipment congestion

Switching equipment congestion: the exchange or switch handling the call is overloaded.

42
Q.850 name
Switching equipment congestion
Group
Resource unavailable
FreeSWITCH
SWITCH_CONGESTION
Asterisk
HANGUPCAUSE=42
SIP response from a gateway
503 Service Unavailable
In SIP
Reason: Q.850;cause=42

Why it happens

What to check

More tools: voip & telephony

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