Sulkin, Allan

PBX systems for IP telephony Allan Sulkin - New York: McGraw-Hill, 2002. - viii, 487p.

PB


Eng

0071375686


Communication engineering

621.382 / SUP

Copyright © 2023, All rights reserved,
Central Library, AIOU, Islamabad Pakistan.
Customized by Irfan Tahmoor Memon (Assistant Librarian)
Ph#: | 051-9571682, 051-9571695 Email| documentdelivery@aiou.edu.pk Web| ”Central Library”