RMX 2000 Administrator's Guide - Polycom Support

Appendix A-Disconnection Causes
ISDN Disconnection Causes
A-10
Table A-2 ISDN Disconnection Causes
Disconnection Cause
Number Summary Description
1 Unallocated
(unassigned
number)
2 No route to
specified transit
network
(national use)
3 No route to
destination
4 Send special
information tone
5 Misdialed trunk
prefix (national
use)
6 Channel
Unacceptable
7 Call awarded
and being
delivered in an
Established
channel
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.
Return the special information tone to the
calling party indicating that the called user
cannot be reached.
A trunk prefix has erroneously been included in
the called user number.
The sending entity in the call does not accept
the channel most recently identified.
The incoming call is being connected to a
channel previously established for similar calls.