The Order program lets you:
Connection to the public telephone system is through the Psion 3-Link accessory and a Hayes compatible or manual modem.
If your Series 3 is not behaving in the way you expect, please see Psion's User Guide Chapter 15 Troubleshooting for hints on what to do. If you have to reset the Series 3 you will need to repeat the installation procedure, but be sure to try soft reset first: if this cures the problem all your files will usually be intact.
Please do not ignore low battery warnings for very long.