Cisco voice gateways and gatekeepers /

Bibliographic Details

Main Author:	Donohue, Denise
Other Authors:	Mallory, David, Salhoff, Ken
Format:	Book
Language:	English
Published:	Indianapolis, IN : Cisco Press, [2007]
Series:	Cisco Press networking technology series.
Subjects:	Internet telephony. Gateways (Computer networks)