Ricoh M281 Series - Page 957

Bit Switches - 5
SM 123 D255/D256 FAX OPTION
D255/D256
FAX OPTION
2-3 SIP: IP-FAX port mode (TCP)
00: 3 port mode
01: 2 port mode
10: 1 port mode
Switch the port mode for IP-FAX (T38
transport: TCP) at SIP call control.
4-7 Not used. Do not change these settings.