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FAX-L260i Chapter 3: Maintenance & Service
e) D-channel error codes and B-channel error codes
• D-channel error codes (##1001~##1131)
D-channel protocol error codes are generated by taking the “cause number” notified which has been noti-
fied by the network and adding “1000” to it inside the machine. The required reason for the disconnection
or restoration is assigned in the “cause number”, but even if the “cause number” notified by the each
country’s network is identical, there will be times when the required reason for the disconnection or resto-
ration will differ.
##1001 [TX/RX] a) Unallocated (unassigned) number
b) Invalid call reference value
Cause a):
Indicated above
Solutions a):
(1) Re-check the phone number and try the call again.
(2) Output a communications analysis list, and analyze it.
(3) Make sure the 4 digits of the applicable error code are registered in
#4B ISDN
BASIC G4/G3 Fallback
and
Speech Fallback on page 3-74.
(4) Take countermeasures as outlined in
D-channel
connection error
in
Commu-
nication problems on page 3-52, Section 4.3.4
.
(5) Make an inquiry to the maker of the Switching equipment.
Cause b):
Indicated above
Solutions b):
(1) Re-trasmit.
(2) Output a communications analysis list, and analyze it.
(3) Make sure the 4 digits of the applicable error code are registered in
#4B ISDN
BASIC G4/G3 Fallback
and
Speech Fallback on page 3-74.
(4) Take countermeasures as outlined in
D-channel
connection error
in
Commu-
nication problems on page 3-52, Section 4.3.4
.
(5) Make an inquiry to the maker of the Switching equipment.
##1002 [TX/RX] No route to specified transit network.
Cause:
Indicated above
Solutions:
(1) Re-check the method of connection to the designated relay network.
(2) Output a communications analysis list, and analyze it.
(3) Make sure the 4 digits of the applicable error code are registered in
#4B ISDN
BASIC G4/G3 Fallback
and
Speech Fallback on page 3-74.
(4) Take countermeasures as outlined in
D-channel
connection error
in
Commu-
nication problems on page 3-52, Section 4.3.4
.
(5) Make an inquiry to the maker of the Switching equipment.
##1003 [TX/RX] a) No route to destination.
b) Designated bearer service not implemented.
Cause a):
Indicated above
Solutions a):
(1) Re-check the phone number and try the call again.
(2) Output a communications analysis list, and analyze it.
(3) Make sure the 4 digits of the applicable error code are registered in
#4B ISDN
BASIC G4/G3 Fallback
and
Speech Fallback on page 3-74.
(4) Take countermeasures as outlined in
D-channel
connection error
in
Commu-
nication problems on page 3-52, Section 4.3.4
.
(5) Make an inquiry to the maker of the Switching equipment.
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