Patent ID: 8326277

Claim:
A method of communicating between a mobile end user device and a media server, which media server forms part of a communication network providing for calls between end users, the media server being configured to communicate with some end users according to at least one call management structured data set defined by SIP (Session Initiation Protocol) or other call management protocol, the method comprising the steps of: establishing a status proxy server having a full bandwidth connection with the media server and a reduced bandwidth wireless connection with the mobile end user device; receiving structured data comprising information, instructions, handshake, and other data provided under the SIP or other call management protocol at the status proxy server from the media server according to the call management structured data set; maintaining a call status indicator at the status proxy server, which call status indicator is representative of the received structured data; and communicating at time intervals an update of the call status indicator to the mobile end user device which is asynchronous with the receipt of structured data at the proxy server and which summarises the structured data received at the proxy server, wherein the step of communicating updates of the call status indicator comprises the steps of: determining a throttle function having parameters of at least two of: the time interval since the last status update communicated to the mobile end user device; the time criticality of the structured data type; a speed of connection parameter; and a payload size; and electing in accordance with those determinations whether or not to communicate an update to the mobile end user device.