Digital telephony and network integration /
Keiser, Bernhard 1928-,
Digital telephony and network integration / Bernhard E. Keiser, Eugene Strange - 2 - páginas
0442009011
Sistemas telefónicos digitales
TK6421 / K45 1994
Digital telephony and network integration / Bernhard E. Keiser, Eugene Strange - 2 - páginas
0442009011
Sistemas telefónicos digitales
TK6421 / K45 1994