Yealink SIP-T42G User Manual page 13

Overview
Item Description
phone disconnects from the line.
Icons appearing on the phone LCD screen are described in the following table:
Icon Description
Network is unavailable
Sign in failed
Hands-free speakerphone mode
Handset mode
Headset mode
Voice Mail
Auto Answer
Call Hold
Call Mute
Ringer volume is 0
Phone Lock
Unread voice mail
Read voice mail
Call Forward/Forwarded Calls
Missed Calls
Received Calls
Placed Calls
Optima HD voice
3