CISCO IP telephony :
Kaza, Ramesh.
CISCO IP telephony : planning, design, implementation, operation and optimization / Ramesh Kaza and Salman Asadullah. - Delhi : Pearson Educ., 2005. - xxiii, 648 p.
8129709570 :
Internet telephony.
TK5105.8865 / .K39
CISCO IP telephony : planning, design, implementation, operation and optimization / Ramesh Kaza and Salman Asadullah. - Delhi : Pearson Educ., 2005. - xxiii, 648 p.
8129709570 :
Internet telephony.
TK5105.8865 / .K39