Philips 288 - Manual (Page 40)

36
Network Services
Touchtones (DTMF)
Your phone keys always transmit DTMF tones (Dual Tone Multiple Frequency)
also known as "touchtones". These tones are used to operate services that you
can reach with your phone, such as a pager or an answering machine.
For example, to consult your home answering machine you may need to enter
the following commands:
Your screen displays: 0123456789w9876p3. Press d to dial.
Make a second call*
You can make a second call during an active call or during a call on hold.
You can also switch between calls.
To switch between calls:
To end a call:
Answering
machine:
number "wait"
signal
password
(ex.)
"pause"
signal
new message
code
Press these
keys:
0123456789 # [9876] #
long press
3
1 Dial the second number during a call.
2 Press d.
1 Press o.
2 Select
Switch calls
.
Press r to hang up active line.