Abstract: A method for downloading destination addresses associated with a given client device from a server to the client device is disclosed. The method comprises the steps of determining a resource limitation of the client device, sorting the addresses, and transmitting a subset of the sorted addresses from the server to the device, wherein the transmitted sorted address subset is determined by the resource limitation. There is also provided a system and server for supporting Instant Messaging (IM).

Abstract: An interworking gateway for interworking an OMA IMPS domain and a SIMPLE domain comprises an OMA IMPS interface for communication with the OMA IMPS domain, a SIMPLE interface for communication with the SIMPLE domain and an interworking function linking the interfaces and comprising a transaction mapping module for converting an interworking subset of OMA IMPS transactions received by the OMA IMPS interface to corresponding SIMPLE transactions and relaying the corresponding SIMPLE transactions to the SIMPLE interface for transfer to the SIMPLE domain and for mapping an interworking subset of SIMPLE transactions received by the SIMPLE interface to corresponding OMA IMPS transactions and relaying the corresponding OMA IMPS transactions to the OMA IMPS interface for transfer to the OMA IMPS domain.

Abstract: There is disclosed a method and system for communicating a secure login request between a mobile client and a destination server providing access to a service, the method to be implemented by a disclosed gateway adapted to communicate with both the mobile client and the destination server. The gateway may also implement appropriate protocol conversions between otherwise incompatible client and server pairs. Wireless instant messaging, email and other such services are considered as exemplary services for the disclosed method, system and gateway.

Abstract: A method for downloading destination addresses associated with a given client device from a server to the client device is disclosed. The method comprises the steps of determining a resource limitation of the client device, sorting the addresses, and transmitting a subset of the sorted addresses from the server to the device, wherein the transmitted sorted address subset is determined by the resource limitation. There is also provided a system and server for supporting Instant Messaging (IM).

Abstract: An interworking gateway for interworking an OMA IMPS domain and a SIMPLE domain comprises an OMA IMPS interface for communication with the OMA IMPS domain, a SIMPLE interface for communication with the SIMPLE domain and an interworking function linking the interfaces and comprising a transaction mapping module for converting an interworking subset of OMA IMPS transactions received by the OMA IMPS interface to corresponding SIMPLE transactions and relaying the corresponding SIMPLE transactions to the SIMPLE interface for transfer to the SIMPLE domain and for mapping an interworking subset of SIMPLE transactions received by the SIMPLE interface to corresponding OMA IMPS transactions and relaying the corresponding OMA IMPS transactions to the OMA IMPS interface for transfer to the OMA IMPS domain.