In a communications network, communications terminals exchange call control capability data which mutually identifies selected call control protocols and network address types. The terminals subsequently set up a call using protocols chosen from those identified. Preferably the terminals continuously monitor for a request for the exchange of such data, allowing other parties to join a session subsequently, after the initial set up.
申请公布号
WO9929135(A1)
申请公布日期
1999.06.10
申请号
WO1998GB03501
申请日期
1998.11.24
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY;BEDDUS, SIMON, ALEXANDER;BRUCE, GARY, LESLIE