TY  - BOOK
AU  - Held, Gilbert
TI  - Voice Over Data Networks
SN  - 9780070281356
U1  - 621.385 
PY  - 1998///
CY  - New York
PB  - McGraw-Hill Book Company
N1  - Introduction IP and Related Protocols Frame Relay Understanding Voice Telephone Operations Voice over IP Networking Voice over Frame Relay Appendix Index
ER  -