What's new?

Using computer networks to carry telephone calls, called packet voice.

How does it do it?

Voice information is compressed and encoded into Internet-style packets of digital data, which are cheaper to send over networks.

Why?

Voice circuits can't save bandwidth during small gaps in speech. Data packets are only sent when there's something to send.

Who will gain?

Companies which already have computer networks between sites, as they can incorporate their calls over these.

Who else?

Companies selling the new packet-voice equipment.

Who loses?

Telecommunications providers which don't offer Internet Protocol data services.