User guide

Troubleshooting the SCOPIA Gateway 165
5
TROUBLESHOOTING THE SCOPIA
GATEWAY
This section covers problems you might encounter when configuring, operating
and managing the SCOPIA Gatewayand provides suggested actions you can
perform to solve the problems.
This section describes the following topics:
 Checking Your Gateway Environment on page 166
 Checking Your LAN Environment on page 166
 Checking Your ISDN Environment on page 167
 Resolving IP-to-ISDN Call Failure on page 167
 Resolving ISDN-to-IP Call Failure on page 169
 Resolving Peer-to-Peer Call Failure on page 171
 Resolving Intermittent Call Failure on page 172
 Resolving IP Video Quality Issues on page 172
 Resolving ISDN Video Quality Issues on page 173
 Resolving Video Channel Issues on page 174
 Resolving DTMF Issues on page 175
 Resolving Caller ID Issues on page 176