NDA-24233 Issue 2 Page C-3VisuaLink 128/384 Engineering Guide Appendix C
901 No response from the remote terminal Automatic dialer has ti med out. Please check number a nd try agai n.
903 Network failure Layer 1 failure. Verify physical network connection.
904 Network failure Layer 2 failure. Verify the pin out between the CODEC and the
network termination device is cor rect.
905 Network Failure or wrong contact TEI error. If failure continues contact your carrier.
906 Network Contact Layer 3 (caller timer t imed out). Try again.
907 Disconnected by initialization Negotiation between switch and CODEC has failed. Power the unit
off and on again.
908 Disconnected by initialization Negotiation between switch and CODEC has failed. Power the unit
off and on again.
912 Disconnected by initialization Software processing other task. Power the unit off and on again.
913 Disconnected by initialization Software processing other task. Power the unit off and on again.
914 Network failure Lower layer negation has failed. Try again. If problem continues
contact your carrier.
915 Network failure Lower layer negation has failed. Try again. If problem continues
contact your carrier.
916 The provisioned communication timer
expired Call condition is No Good. Please check number and try again.
917 Running Network Initialize P r ocedure Layer 3 initialization has not complete d. Wait a few minutes and try
again.
918 Incorrect registered SPID numbers Check SPID registration.
919 A connection could not be made CES pointing error. Wait a few seconds and try again. If problem
continues contact your carrier.
980 Disconnected VCE (Video Chip has hung up). Reset the unit and try again.
Table C: ISDN Q.931 Cause Code Definitions
Code Meaning Explanation