Ricoh SGC 1506 Operating Instructions Manual page 194

Registering Addresses and Users for Facsimile/Scanner Functions
D
Enter the password using the number keys and then press the {OK} key.
E
Press [Exit].
To set the International TX Mode
A
Press [Option].
7
B
Select [International TX Mode] using {U} or {T}, and then press the {OK} key.
C
Select [On] or [Off] using {U} or {T}, and then press the {OK} key.
D
Press [Exit].
186