Advanced Assistant for Nokia 6600/7610/6670/3230/6260/6620/6630/6260/6680/6681/6682/90/91 and Panasonic X700/X800 and Siemens X1 "Advanced Assistant" is a powerful mobile application--integrating the main features of several most popular applications. It helps mobile end users to locke Mobile Phone automatically、Guard against theft、Capture pictures + turn off and Open mobile phone in time、record phone call conversations and Record voice

User Guard

you can read the details from the following site:
http://www.SymbianOn.com

It has the following functions:

1、Locking Mobile Phone automatically
when this option is open, the telephone is locked utomatically when users don't use the telephone for several minutes. so users wouldn't dial the wrong number and use the functions that users don't want.

2、Guard against theft when this option is open, the users need set the familiar telephone number, when telephone is lost and the others use your telephone with another number, this application will send the SMS to the familiar number that you set. so users can konw who use their telephone according the SMS now.

3、Phonecall recording
application will let you record incoming and outgoing phone calls, if a user wants to record the voice over the telephony line, then the user just simply simultaneously presses "ABC" key (on which has a pen icon) and "5" key to start recording over the telephony line. Another simultaneous press of "ABC" key and "5" key will stop the recording process. If the user wants to record it again, then, he/she just needs to simultaneously press "ABC" key and "5" key to start it again and so on.

4、Voice recording
application will let you record voices, the user just simply simultaneously presses "ABC" key (on which has a pen icon) and "2" key to start recording voice. Another simultaneous press of "ABC" key and "2" key will stop the recording process.