call waiting Internet busy (CWIB)

The Call Waiting Internet Busy (CWIB) function is about Internet telephony. The subscriber is also shown incoming calls during an Internet session.

If a call is received during an IP session, a pop-up menu with call number display appears on the screen. The CWIB feature allows the subscriber to answer the call on their phone.

Other additional services supporting Internet telephony are Call Completion Internet Busy( CCIB), E-Mail Waiting Indication( EWI) or Internet Call Waiting( ICW).