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344
Error Name Hex Value
(Decimal)
Q.931 Code and Description
INVALID_NUMBER_FORMAT 0x21C
(540)
Cause 28
Invalid number format
(incomplete number)
FACILITY_REJECTED 0x21D
(541)
Cause 29
Facility rejected
RESP_TO_STAT_ENQ 0x21E
(542)
Cause 30
Response to STATUS
ENQUIRY
UNSPECIFIED_CAUSE 0x21F
(543)
Cause 31
Normal, unspecified cause
NO_CIRCUIT_AVAILABLE 0x222
(546)
Cause 34
No circuit/channel available
NETWORK_OUT_OF_ORDER 0x226
(550)
Cause 38
Network out of order
TEMPORARY_FAILURE 0x229
(553)
Cause 41
Temporary failure
NETWORK_CONGESTION 0x22A
(554)
Cause 42
Switching equipment
congestion
REQ_CHANNEL_NOT_AVAIL 0x22C
(556)
Cause 44
Requested channel/circuit not
available
PRE_EMPTED 0x22C
(557)
Cause 45
Call preempted
FACILITY_NOT_SUBSCRIBED 0x232
(562)
Cause 50
Requested facility not
subscribed