Telos TWOx12 - Page 172

TELOS TWOX12 USER’S MANUAL
TECHNICAL DATA & TROUBLESHOOTING
CHAPTER 8 160
CLASS 1.5 (Invalid message; e.g. parameter out of range)
Cause No. 81 – Invalid call reference value
This cause indicates that the equipment sending this cause has received a message with a call
reference which is not currently in use on the user-network interface. This value only applies
if the call reference values 1 or 2 octets long and is not the global call reference.
Cause No. 82 – Identified channel does not exist
This cause is sent when the equipment sending this cause has received a request to use a
channel not active on the interface for a call
Cause No. 83
A suspended call exists, but this call’s identity does not
Cause No. 84 – Call identity in use
This cause indicates that a call identity is in use.
Cause No. 85 – No call suspended
This cause indicates that no call is suspended.
Cause No. 86 – Requested call identity cleared
This cause indicates that the call having the requested called entity has cleared.
Cause No. 88 - Incompatible destination
This cause indicates that the equipment sending this cause has received a request to establish
a call which has low layer compatibility, high layer compatibility or other compatibility
attributes (e.g. data rate, DN subaddress) which cannot be accommodated. This call can also
be returned by a switch to a CPE when trying to route a call to an incompatible facility, or
one without data rate.
Cause No. 91 - Invalid transit network selection
This cause indicates that an Invalid transit network selection has been requested.
Cause No. 95 – Invalid message, unspecified
This cause indicates that the entity sending this cause has received and Invalid message, only
when no other cause in this class applies.