Introduction to Private Telephone Systems; KTS, PBX, Hosted PBX, IP Centrex, CTI, iPBX and WPBX, 2nd Edition

Telephone

by Mr. Lawrence Harte

Paperback

details (USA).

ISBN: 978-0-9742787-2-8

ISBN-10: 0-9742787-2-6

DiscoverNet · 2005