Internet call waiting
From Wikipedia, the free encyclopedia
Internet Call Waiting is a technology that allows you to accept incoming calls while connected to a 56k Internet dialup connection.
While online, a software application displays users the Caller ID of the incoming call, and gives users the opportunity to screen the incoming call. Users are then able to forward the incoming call to another number, or to disconnect from the internet and take the call immediately.
Most software is currently fee based, but there are free software solutions available.