Excelltel CDX-CS - Chap 5 Maintenance & Troubleshooting; 1. Outgoing calls cant be made; 2. Outside calls cant dial in; 3. Intercom cant be made

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P35
Chap 5 Maintenance & Troubleshooting
1. Outgoing calls can’t be made
1). C.O. line is set to special Extension;
2). Extension hangs up improperly;
3). CPU and internal data is disorder caused by unstable power.
4). Call restriction class is 6.
2. Outside calls can’t dial in
1). The conjunction of C.O. line loose;
2). C.O. line was connected to other equipment;
3). No message recording at auto-operator mode.
3. Intercom can’t be made
1). Extension hangs up improperly;
2). Extension number wrong.
BREAKDOWN
CAUSE
SOLUTION
Running light
malfunction
Power off
Check the power socket and Power
supply
No sound from extension
Disconnected wiring or
malfunction of telephone.
Reconnect the wiring or try to remove
the telephone’s failure
Cacophony
Bad connection
Screw down the joint
The distributing of line is not
reasonable
Leave telephone from the disturbing
source
Bad tone
Mix using of non-standard
telephones
Use the standard telephones
No incoming
Devoid function of incoming
telephone display
Write application to telecommunication
office
telephone display
Wrong setting of No-disturbing
and it status.
Rescind the No-disturbing and set
incoming telephone display
Exterior line disconnected
Connect to the exterior line