Ericsson 4187 Plus - Manual (Page 17)

17 Dialog 4187 Plus
Incoming Calls
Answer a second call
A call waiting tone will inform you, during a conversation, that a
second call is waiting. You have two options.
Option 1:
Finish the ongoing call:
d
Replace the handset.
The new call will be signalled on your phone. u
Lift the handset to receive the new call.
Option 2:
Ask the party you are speaking with to wait:
¸ d
Press and replace the handset.
The waiting call will be signalled on your phone. u
Lift the handset to receive the new call.
After finishing the new call: d
Replace the handset.
Your first call will be signalled on your phone. u
Lift the handset to receive the first call again.