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
>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
>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.
