The Modem speed or baud selection from highest to lowest is done automatically.
? Modem speed*1: 33,600 / 31,200 / 28,800 / 26,400 / 24,000 / 21,600 / 19,200 / 16,800 / 14,400 / 12,000 / 9,600 / 7,200 / 4,800 / 2,400 bps; Automatic Fallback
see page 84 of 96
ftp://ftp.panasonic.com/faxmachine/om/kx-mb271_en_om.pdf
or click on
5 in 1 Multifunction Office Machine
You should consider .....
2.10 Configuring the unit to access the LAN (KX-MB781 only) You can print documents, scan documents, receive faxes or send faxes using a computer on the LAN. To enable these features, you need to set the IP address,
5 in 1 Multifunction Office Machine