3JF
1-3-21
Maintenance
Description
item No.
U612
Setting the modem detection level
Description
Sets the modem detection level.
Purpose
To improve the transmission performance when a low quality line is used.
Method
Press the start key. The current setting is displayed.
Setting
1. Change the setting using the numeric keys.
–33 dBm
–38 dBm
–43 dBm
–47 dBm
Display
1: 33
2: 38
3: 43
4: 47
Description
2. Press the start key. The value is set.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
U613
Setting the DTMF output level
Description
Sets the DTMF output level of a push-button dial telephone.
Purpose
Used if problems occur when sending a signal with a push-button dial telephone.
Start
1. Press the start key. The screen for selecting an item is displayed.
2. Select the item to be set using the up/down cursor keys.
3. Press the start key.
The screen for the selected item appears.
Sets the DTMF (high-frequency group) output level.
Sets the DTMF (low-frequency group) output level.
Display
DTMF TX LEVEL (H)
DTMF TX LEVEL (L)
Description
Setting
1. Change the setting using the numeric keys.
0 to 255
Description
DTMF (high-/low-frequency group) output level
Setting range
E.g.: When set to 8, the DTMF output level is –8 dBm.
2. Press the start key. The value is set.
3. To return to the screen for selecting an item, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for selecting a maintenance item No. is
displayed.