Ch. 1. Touring the history museum of telephony -- Ch. 2. Making waves : turning your voice into 1s and 0s -- Ch. 3. Paving the pathway to a voice over IP network -- Ch. 4. Meet the "brain" of the voice over IP network -- Ch. 5. Speaking the gateways' languages -- Ch. 6. Why quality matters -- Ch. 7. VoIP supporting roles
Notes
Includes index
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