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11
Listen for ringback tone.
> If there is ringback tone, go on to step 12.
> If there is no ringback tone, hang up and repeat
steps 8 and 9 for any other ports being tested.
When all ports have been tested, go on to step 17.
12
Pick up the handset at station B.
> If you are connected to station B, hang up and go
on to step 13.
> If you are not connected to station B, hangup and
repeat steps 8 and 9 for any other ports being
tested. When all ports have been tested, go on to
step 17.
13
off-hook on station B.
> If you hear dial-tone, go on to step 14.
> If you do not hear dial tone, go on to step 17.
14
Dial station A.
> If the tie line does not drop (within five seconds)
go on to step 15.
> If the tie line drops within five seconds go on to
step 17.
15
Listen for ringback tone.
> If you hear ringback tone, goon to step 16.
> If you do not hear ringback tone, go to step 17.
16
Pick up the handset at station A.
> If you are connected to station A, the tie line is
good. Go on to step 17.
> If you are not connected to station A, go on to step
17.
4-26 Tie Line Troubleshooting