Polycom RMX 1500 Administrator's Manual page 841

ISDN Disconnection Causes
Table A-1 Call Disconnection Causes (Continued)
Disconnection Cause
SIP transport error
SIP unauthorized
SIP unsupported media
type
Table A-2 ISDN Disconnection Causes
Number Summary
1 Unallocated
(unassigned
number)
2 No route to
specified transit
network
(national use)
3 No route to
destination
Description
Unable to initiate connection with the endpoint.
The request requires user authentication.
The server is refusing to service the request
because the message body of the request is in a
format not supported by the requested resource
for the requested method.
Disconnection Cause
Description
No route to the number exists in the ISDN
network or the number was not found in the
routing table.
•
Ensure that the number appears in the
routing table.
• Ensure that it is a valid number and that
correct digits were dialed.
The route specified (transit network) between
the two networks does not exist.
No physical route to the destination number
exists although the dialed number is in the
routing plan.
•
The PRI D-Channel is malfunctioning.
•
Incorrect connection of the span or WAN.
Chapter A-Disconnection Causes
A-9