Operating instructions
TransTel Model TD-824-I Digital Telephone System – Key Telephone Operation Manual
Page 193
Note: On invalid password or card, ACP will play busy tone for 5 sec and display will show ‘ERR’.
Check out (lock) ACP (as wall mount phone)
Operation:
1. +
[8]
+
[password (3-digit)]
to lock up ACP (as wall mount phone) to prevent it from use by others.
2. +
[#]
+
[password (3-digit)]
to un-lock ACP (as wall mount phone) for temporary use (making a call)
by the owner. After the use, ACP is locked up again.