SENSATION! (250-1650) Modem Options Faxback Doc. # 2625 Modem Options The send fax/modem on the sensation is set to COM2 by default. There are no jumpers or DIP switches on the modem to change the com port setting. If the internal serial port is disabled, the modem will move to COM1 automatically. If the send fax/modem is removed, you will lose the answer mode on the Sensation. To have the Sensation's answering machine (using the on-board modem) and a Send/Receive Fax Modem installed use the following COM ports. COM1 - Externally COM1 - Internally As long as the Serial Port is Disabled in SETUPMMS. COM3 - Internally COM4 - Internally