Carrier grade voice over IP
Collins, Daniel
Carrier grade voice over IP Daniel Collins - 2nd ed. - New Delhi Tata McGraw-Hill Publishing Company Limited 2003 - xviii, 522p.
9780070603233
Internet telephony
Digital telephone systems
006.454 C692c2
Carrier grade voice over IP Daniel Collins - 2nd ed. - New Delhi Tata McGraw-Hill Publishing Company Limited 2003 - xviii, 522p.
9780070603233
Internet telephony
Digital telephone systems
006.454 C692c2