AT Commands

Playing around with my mobile phone dialing using Com-port over BlueTooth.
-Connect using HyperTerminal
- Select Comport, use default settings 2400,8,N,1

To make a call:
Type: ATDT ThePhoneNumber;
(Don't forget the ; at the end.)

To answer a Call:
Type: ATA

To hang up a call:
Type: ATH

You find lots of reference for 'AT commands' by searching on Google.

ref: http://developer.sonyericsson.com/getDocument.do?docId=65054