AASTRA 4187 Plus for BusinessPhone User Guide EN - Manual (Page 32)

During Calls
BusinessPhone – Dialog 4187 Plus 32
Call Waiting
If you hear the Call Waiting tone during an ongoing conversation,
another person is trying to contact you.
To terminate the ongoing call and answer the waiting
call
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 your conversation partner 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.