Oki OKIOFFICE 84 Service Manual page 84

*3:
User can not select in some countries.
*4:
When the service bit is set to OFF, ERR. REPORT (MCF.) of No. 03, RING RESPONSE of No. 11, DISTINCTIVE RING
of No. 12 and POWER SAVE MODE of No. 18 are bypassed to the next function No. in some countries.
:
Effective if the service bit is set to ON.