Ricoh MP C307 Field Service Manual page 1172

4.Service Tables
7 Not used
G3 Switch 0B - Not used (do not change the settings).
G3 Switch 0C (SP No. 1-105-013)
No Function
0- Not used
1
4- Select detection of DTMF/DP detection
5 when using remote switch.
00: DTMF+PSTN (Simultaneous detection)
01: DTMF
10: DP (10 PPPS)
11: DP (20 PPS)
6- Not used
7
G3 Switch 0D - Not used (do not change the settings).
G3 Switch 0E (SP No. 1-105-015)
No Function
0-7 Set CNG send time interval
Some machines on the receiving side may not be able to automatically switch the 3-second CNG interval.
High order bit
Low order bit
G3 Switch 0F (SP No. 1-105-016)
No Function
0 Alarm when an error occurred in
Phase C or later
0: Disabled
1: Enabled
1 Alarm when the handset is off-hook at
90
Refer to error code 0-20.
ITU-T T.30 recommendation: The first line should come within 5 s of
CFR.
Do not change the settings.
Comments
Do not change these settings.
This setting determines how to detect the signals from the
handset when remote switch is active.
Do not change these settings.
Comments
3000-2250ms: 3000-50xNms
3000 – 50 x Nms 0F (3000 ms) <= N <= FF (2250 ms)
00-0E(3000-3700ms: 3000+50xNms
3000 – 50 x Nms 0F (3000 ms) <= N <= 0F (3700 ms)
Comments
If the customer wants to hear an alarm after each error
communication, change this bit to "1".
If the customer wants to hear an alarm if the handset is off-hook