Oki 1.2 - Manual (Page 37)

29 Setup
Detailed settings for
the PSTN line
Item Description Default
Hookflash time Used to specify the hookflash time for the PSTN line. 384 ms
Ringing signal Used to specify the detecting time intervals between
interval ringing signals. 3 sec.
Pre-pause timer Used to specify the pause interval before generating a
timer dialing signal. 3 sec.
Default values, set at the time of product shipping, are displayed when
the Restore default button is clicked.