Specifications

ATM Signalling Monitoring Table View
Device Management Page 133 SmartSwitch 9000/9500 Series
-
Message Errors
Number of Incorrect Messages detected on this
interface. The Incorrect Messages Counter reflects
any sort of incorrect information in a message.
This includes:
• RELEASE, RELEASE COMPLETE, ADD
PARTY REJECT, and STATUS messages
transmitted, that contain any of the Cause
values listed below.
• Ignored messages. These messages are
dropped because the message was so
damaged that it could not be further
processed.
A list of dropped messages is compiled below:
• Message with invalid protocol discriminator
• Message with errors in the call reference I.E.
- Bits 5-8 of the first octet not equal to
'0000'
- Bits 1-4 of the first octet indicating a
length other than 3 octets
- RELEASE COMPLETE message received
with a call reference that does not relate to
a call active or in progress
- SETUP message received with call
reference flag incorrectly set to 1
- SETUP message received with a call
reference for a call that is already active or
in progress.
• Message too short
Table 38: Called Party
Cause Value Meaning
17 User busy.
18 No user responding.
21 Call rejected.
22 Number changed.
23 User rejects all calls with calling line
identification restriction (CLIR).
27 Destination out of order.
31 Normal, unspecified.
88 Incompatible destination.
Note:
Note:
Cause Value #30 'response to
STATUS ENQUIRY' was not
included in this memo since it did
not apply to a hard failure.