Call Establishment Problems

X.25 Trouble Shooting Guide - Call Establishment

Problem Symptom Possible Cause(s) Action
An incoming call is cleared with cause 0x00 (or 0x80), diagnostic 0x80. The application that is supposed to accept the call is not running, Load the application
The called NUA is unknown or has been configured incorrectly. Reconfigure either the calling application or the called application with the correct NUA.
An outgoing call is made (i.e. a Call Request packet is sent), but there is no response (i.e. no Call Connected or Clear Indication packet is received). Eventually the call times out. The channel assignments (LCNs) are incorrect. Find out what the channel assignments should be and correct them in the configuration. refer to the CHANNELS command in the setup.x25 file.