1Standardizing call control in voice over internet applications: A MGCP approach, GokulakrishnanT, Gopalakrishnan,James Leffew,Sangeetha Shreinivasan,Wilfrido Moreno,Fourth IEEE International Caracas Conference on Devices,Circuits and Systems,Aruba,April 17-19,2002.
2Daniel Collins."Carrier Grede Voice over IP",McGraw-Hill Companies, Inc,2001.
3MGCP :RFC2705,Media Gateway Control Protocol, Version 1.0,1999.