Patent ID: 8760491

Claim:
A method for implementing calls by using H.323 protocol stacks, comprising: deploying a plurality of protocol stacks in a multi-point control unit; configuring a maximum number of processable calls of each protocol stack, and pre-configuring an IP address of a third protocol stack as an incoming address when the multi-point control unit is a called party, wherein the third protocol stack is configured to perform the H.225 signaling interaction with an opposite end when the multi-point control unit is the called party; when the multi-point control unit is a calling party, selecting a first protocol stack, the number of proces sable calls of which does not exceed said maximum number of calls, to perform the H.225 signaling interaction with a called party, and selecting a second protocol stack, the number of processable calls of which does not exceed said largest number of calls, to perform the H.245 signaling interaction with the opposite end; and when the multi-point control unit is a called party, selecting a fourth protocol stack, the number of processable calls of which does not exceed the maximum number of calls, to perform the H.245 signaling interaction with the opposite end.