Patent ID: RE42920

Claim:
An inter-domain mobility management method, comprising: (a) a mobile H.323 . entity communicating sending information related to the mobile entity with to a first gatekeeper in a first administration administrative domain; (b) said first gatekeeper being unable to verify said information on related to said mobile H.323 entity and sending information to accessing a first border element within said first administration administrative domain to resolve said information related to the mobile entity ; (c) said first border element communicating information with accessing a second border element in a second administrative domain to resolve said information related to the mobile entity; (d) said second border element communicates sending back with to said first border element with information to resolve information that resolves said information related to the mobile entity; and (e) said second first border element accepting said resolved information related to the mobile entity and communicates said information with sending to said mobile H.323 entity via said first gatekeeper a reply to the information related to the mobile entity sent by said mobile H.323 entity .