Source Priority Failing checks
Normal call clearing
Medium
Unallocated or unassigned number
Medium
No route to specified transit network (Transit Network Identity)
Medium
No route to destination
Medium
Send special information tone
Medium
Misdialled trunk prefix
Medium
Channel unacceptable
Medium
Call awarded and being delivered in an established channel
Medium
Prefix 0 dialed but not allowed
Medium
Prefix 1 dialed but not allowed
Medium
Prefix 1 not dialed but required
Medium
More digits received than allowed, call is proceeding
Medium
Normal call clearing
Medium
User busy
Medium
No user responding
Medium
T.301 expired: - User Alerted, No answer from user
Medium
Call rejected
Medium
Number changed to number in diagnostic field.
Medium
Reverse charging rejected
Medium
Call suspended
Medium
Call resumed
Medium
Non-selected user clearing
Medium
Destination out of order
Medium
Invalid number format or incomplete address
Medium
EKTS facility rejected by network
Medium
Response to STATUS ENQUIRY
Medium
Normal, unspecified
Medium
Circuit out of order
Medium
No circuit/channel available
Medium
Destination unattainable
Medium
Out of order
Medium
Degraded service
Medium
Network out of order
Medium
Transit delay range cannot be achieved
Medium
Throughput range cannot be achieved
Medium
Temporary failure
Medium
Switching equipment congestion
Medium
Access information discarded
Medium
Requested circuit channel not available
Medium
Preempted
Medium
Precedence call blocked
Medium
Resource unavailable, unspecified
Medium
Quality of service unavailable
Medium
Requested facility not subscribed
Medium
Reverse charging not allowed
Medium
Outgoing calls barred
Medium
Outgoing calls barred within CUG
Medium
Incoming calls barred
Medium
Incoming calls barred within CUG
Medium
Call waiting not subscribed
Medium