Abstract: The present invention relates to the field of mobile communications and in particular to messaging methods and systems using mobile communications terminals. The invention provides for the ability for a message to be transmitted to a recipient device in a number of different formats dependent upon the information which is known about the recipient device at that time. Said information may include a messaging address and/or telephony identifier and the possible message formats include e-mails and SMS formats. The particular format selected and the particular device information used to send the message can be selected to suit particular conditions and requirements thereby providing a method and system for ensuring that transmitted messages are received most efficiently.

Abstract: The present invention relates to the field of mobile communications and in particular to messaging methods and systems using mobile communications terminals. In particular, but not exclusively, the invention relates to email messaging and in accordance with the invention there is established a connection between at least one mobile communication terminal and a server for a specific period of time which allows messages to be communicated to the terminal. The duration of the connection is typically such as to allow more than one message to be received in any specific time period. The connection time periods are interspersed with periods of non connection and the duration and frequency of said connection time periods may be controlled with respect user selected modes of operation and/or an operating parameter of the mobile communication terminal.