Philips CD 1550 User Manual page 12

During a call: Switch from pulse dialing to
tone dialing.
In call log reviewing mode: Press repeatedly
to view the alternate dialing sequences.
K Ringer off key
In idle mode: Insert #. Long press to turn
the ringer on/off.
During a call: Insert #. Long press to insert
a pause.
In text editing mode: Switch
between upper and lower case. Long press
to insert a pause.
M
L Mute key
During a call: Mute/unmute the handset
microphone.
10
#
M Call transfer/Intercom key
In idle mode: Initiate an internal call.
During a call: Hold the line and page
another handset or toggle between an
external and internal call. Long press to
initiate a conference call.
N Microphone
O Battery door
P Loudspeaker
!
Warning
Handsfree activation can suddenly
increase the volume in the earpiece to a
very high level. Make sure the handset is
not too close to your ear.
Q Belt clip
i
Your phone