Do you have to have a digital modem if your telephone is digital?

Digital telephone is a services where from you can get voice with data services.Like old POTS you can have only voice services which works at 64 kbps rate, while digital telephone uses at least 128...

it is a telephone which is digital and it has a computer inside it

VoIP is voice over internet protocol. In digital telephones voip is the calls made in wireless telephones like cellphones which uses internet.

In digital circuits modem is used to multiplex and demultiplex the digital data.multiplexing means the digital signals amplitude or frequency or phase is varied with a carrier signal.at the receiver...

digital media is any technology that gives a sence of enjoyment