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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, hangup and repeat
steps 8 and 9 for any other ports being tested.
When all ports have been tested, go on to step 17.
12
Pickup the handset at station B.
> If you are connected to station B, hang up and go
onto step-13.
> If you are not connected to station B, hang up and
repeat steps 8 and 9 for any other ports being
tested. When all ports have been tested, go onto
step 17.
13
Go 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
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
Pickup 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.
4-14 Tie Line Troubleshooting