Modem Parameters mp. 0 ] parm omc dm originate enable

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Last Edit: 01/26/99

Modem Parameters

MP. 0 ] parm__omc_dm_originate_en Originate Enable

This parameter specifies whether this device uses originate or answer data modulation/data protocol procedures.

Range:

1 = TRUE, originate enabled / originate (org) mode

0 = FALSE, originate disable / answer (ans) mode
Default:

0 = FALSE, originate disable / answer (ans) mode

MP. 1 ] parm__dial_billing_delay_duration Billing Delay Timer

This timer specifies the delay from line seizer to the first tone generation.

A value of 0x0 disables this timer.
Range:

0 to 65535, units of 10(mS)

Default: 200 = 2(S)
Conversion:

Billing_Duration = 10(mS) * parm__dial_billing_delay_duration

MP. 2 ] parm__omc_dmdp_max_startup_duration Connect Timer

This timer specifies the maximum time allowed to achieve a successful data connection.

A value of 0x0 disables this timer.
Range: 0-65535, u(Units of 10 ms)
Default: 9000 = 90(S) = 1.5(minute)
Conversion:

Connect_Duration = 10(mS) * parm__omc_dmdp_max_startup_duration

MP. 3 ] parm__dp_start_delay Data Protocol Start Timer

This timer specifies the delay from data modulation connection to the data protocol startup.

Range:

0 to 65535 units of 10(mS)

Default: 3 = 30(mS)
Conversion:

Data_Protocol_Start_Duration = 10(mS) * parm__dp_start_delay

parm__dp_start_delay = Data_Protocol_Start_Duration / 10(mS)

MP. 4 ] parm__dp_allowed_mask Data Protocol Allowed Mask

This mask specifies which data protocols will be allowed for the current connection. The inherent order of precedence when all protocols are allowed is as follows:

1^st - LAPM

2^nd - MNP

3^rd - buffered

4^th - direct

Data Protocol Allowed Mask Bit Definitions:

bit

n/a

drct

bffr

MNP

LAPM

- The reset default of 0x000F is shown.

- "1" = allowed, "0" = not allowed.

Bitfield Definitions:
Bit 3 "drct" = Enables direct mode. No data protocols are enabled. Direct data flow between data pump V.14 SART and network data FIFOs.
Bit 2 "bffr" = Enables buffered mode. No data protocols are enabled. Direct data flow between data pump V.14 SART and network data FIFOs. However, V.80 modem to modem flow control is supported.
Bit 1 "MNP" = Enables error correction data protocols MNP 1, 2, 3 & 4. This allows the use of MNP 5 data compression.
Bit 0 "LAPM" = Enables error correction data protocol V.42. This allows the use of V.42bis data compression.
In order for this parameter value to take effect for a given connection, it must be set before the Modem connect event is posted/issued.

MP. 5 ] parm__dp_preferred_mask Protocol Preferred Mask

This mask specifies which data protocols will have precedence outside the inherent precedence.

Note that if a lower precedence is specified that this does not preclude a higher allowed precedence from being used.
Data Protocol Preferred Mask Bit Definitions:

bit

n/a

MNP

n/a

- The reset default of 0x0000 is shown.

- "1" = preferred, "0" normal precedence.

In order for this parameter value to take effect for a given connection, it must be set before the Modem connect event is posted/issued.

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