Switching to VoIP /

Bibliographic Details
Main Author: Wallingford, Ted.
Format: Book
Published: Beijing ; Sebastopol, CA: O'Reilly, 2005.
Edition:1st ed.
Subjects:
Description
Item Description:Includes index.
Physical Description:xxi, 477 p.: ill.; 24 cm.
ISBN:0596008686 (pbk.)