User guide

Basic Operating Functions10
Operating Forum IPhone 545 SIP Telephone
Conference key: is for initiating a conference.
Transfer key: transfers the current call to another
subscriber.
Hold key: Puts the current call on hold. Press this
key once again to retrieve the call on hold.
Redial key: redials previously dialled numbers.
Goodbye key: Ends an active call or exits an open
menu page without saving any changes made.
Mute key: turns the microphone on or off.
Volume control keys: adjust the volume for the
handset, ringer and speaker.
Voice mail key: opens the list of voicebox
messages (see Querying Voicebox Messages
starting on page 29).
Trunk keys: connect you to a specific line or
accept a call which is signalled on the line.
Handsfree key: Activates the handsfree function
for making and receiving calls without picking up
the handset. When a headset is connected, a call
can be accepted and ended using this key.
Forum IPhone 545
Keys Key Description and Function