I use the same dial-up number on my mobile as I do on a laptop using BT through a standard modem on a BT line (can't remember the last time that was used though!)
The connection type on the mobile is interesting though, Remote modem:Analog, Modem speed: 9600
Shockingly low speed by todays standards but to send a quick email where otherwise you could be restricted by SMS limits it's fine. I know I can use my mobile operators GPRS/EDGE connection to do the same but by using the BT dial-up number every now and again I am keeping my side of the bargain where I am making a chargeable call to their network.
** Just changed the connection speed to 14,400 so now running on rocket fuel on an old data connection
*** And now running at 28,880! Seems that is the limit for data calls unless one has ISDN provisioned (?)
Edited by IanBB (Mon 17-Dec-12 13:43:00)