Call waiting will allow you to receive or hold incoming calls when your line is busy. A short beep will signal another incoming call during your conversation. In addition, the incoming caller ID/phone number will be displayed on the screen of your phone.
You may choose to swap and answer the other call or reject the call. You could also choose to conclude the first call and then answer the call on hold.
This service is free and the caller pays for the call holding.
How to Activate or Deactivate this service?
Press: *43# OK.
Press: #43# OK.