AT&T MERLIN LEGEND Installation & Maintenance Manual page 228

Installation
3. Dial the extension number of another working telephone.
You should hear ringback at the calling telephone and ringing
at the called telephone.
4. the called telephone, have someone pickup the handset;
At
verify that you have good two-way communication.
5. At both telephones, hang up.
6. If you are at a multiline telephone, press an outside line
button or the System Access button.
7. Pick up the handset.
You should hear a dial tone.
If you are using an System Access button, dial the dial-out
8.
code.
9. Dial one of the numbers assigned to the telephone you want
to answer the call.
You should hear ringback at the calling telephone and ringing
at the answering telephone.
10. Have someone pick up the handset at the answering
telephone; verify that you have good two-way communication.
11. At both telephones, hang up.
12. If the station is toll restricted, place a toll call.
You should hear a reorder tone.
Test the Ground-Start and Loop-
Start Lines/Trunks
Follow these steps to test the GS and LS outgoing and incoming
lines/trunks at a telephone:
1. Dial ∗03 followed by the line/trunk ID number (01-80).
3-120 System Acceptance Test