VisuaLink 128/384 User Guide

Chapter 9

 

 

 

 

 

 

 

 

 

Area

Condition

Check Item and Countermeasures

 

 

 

 

 

 

 

[When placing a call, the line immediately hangs up]

 

 

 

Make sure the network is connected.?

 

 

 

The line could be busy. Please try later.

 

 

 

Verify the line conditioning setting match that for the VL.

 

 

 

[Line disconnects a few seconds/minutes after placing a call]

 

 

 

The line could be busy. Please try later.

 

 

 

Remote equipment could be turned OFF.

 

 

 

Verify the number called.

 

 

Unable to connect to a

[The line is disconnects during communication]

 

 

Failure could have occurred on the line, which has caused the line to

 

 

remote site

disconnect. Please try connecting again.

 

 

 

 

 

 

[Voice and picture are not received after connecting]

 

 

 

A line failure has occurred. Please disconnect and replace the call.

 

Network

 

A communication protocol failure with the remote address has occurred.

 

 

Please disconnect, power OFF and ON the equipment to clear the

 

 

 

status. Please try connecting again after the status has cleared.

 

 

 

[There are random errors with the voice and picture]

 

 

 

If a line error or a equipment failure occurs during communication, noise

 

 

 

in audio and/or error in picture may occur. Please disconnect once and

 

 

 

reconnect.

 

 

 

 

 

 

 

[ISDN is not present]

 

 

 

Check the ISDN line connection. The VisuaLink has a S/T interface and

 

 

If after everytime you try to

requires an NT12 to be connected between the VisuaLink and your ISDN

 

 

line unless the VisuaLink is connected to a PBX.

 

 

dial a call, the system

 

 

Make sure the ISDN cable to the system is securely attached.

 

 

immediately ask you to

 

 

redial

SPID and/or ISDN number entered incorrect

 

 

 

Check the Local Line setting

 

 

 

Run a Local Line loopback from the maintenance settings.

 

 

 

 

 

 

If you can make calls to

[ISDN provisioning]

 

 

some sites but not others.

Need to confirm ISDN provision from the Teleco.

 

 

 

 

NDA-24230 Issue 2.0

Page 9-3

Page 141
Image 141
NEC 128/384 manual When placing a call, the line immediately hangs up