Abstract: In one embodiment, a method for saving power on a mobile device includes receiving an indication of termination of a power-save mode of the mobile device, and requesting presence information for a plurality of peers of a user from a server or a P2P communication network in response to the received indication.

Abstract: In one embodiment, a method for saving power on a mobile device includes receiving an indication of termination of a power-save mode of the mobile device, and requesting presence information for a plurality of peers of a user from a server or a P2P communication network in response to the received indication.

Abstract: A method and apparatus for multimodal communication device capable of automatically determining an optimal communication mode. A user input selecting one of a contact and a stored communication is received, wherein each of the contact and the stored communication is associated with a destination. An optimal global communication mode to use for communicating with the destination is automatically determined from a plurality of communication modes. The destination is communicated with using the optimal global communication mode if a predefined condition is satisfied.

Abstract: Methods and apparatuses in automatic detection of a required network key type are described. In one embodiment, a client device prompts a user for a pass phrase, receives a pass phrase and automatically determines the encryption type for the pass phrase to connect to a network. The client device then communicates with a server to authenticate the client device.

Abstract: A mobile device operating in a cellular communication network determines its current location via the cellular communication network, for example, by triangulation of the base stations of the cellular communication network. At its current location, the mobile device also detects a wireless local area network (WLAN) such as a Wi-Fi network. The mobile device then sends the location information and an ID of the WLAN to a network based database server, which creates an entry to store data associating the location information with the WLAN. The mobile device can also store data associating the location with the WLAN in a local storage.