Samsung SHT-8610 User Manual page 49

Using the extension phone
※ This function is available only in the extension phone that is connected to the system.
1
Pick up the extension phone.
4
To end the call, place the handset
down.
2
Press "#".
Press [1] while talking. Then the door is open. (It works the same while calling and
●
receiving.)
Note
3
Start talking with a visitor.
47