User's Manual

FSU811 User Guide Use of RJJ Extension 5-3
2, Pick up the
extension.
Busy tone is heard from the extension,
while the off-the-hook dial tone can still
be heard from FSU811 phone.
3, Hang up the
extension.
The off-the-hook dial tone can still be
heard from FSU811 phone.
4, Hang up
FSU811
phone.
FSU811 phone returns back to the
standby mode.