US Robotics 56 K SOFTMODEM - COMMAND REFERENCE REV 1 Manuel d'utilisateur télécharger pdf (Page 37)

56K Softmodem

Command Reference

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blacklisted, failed, or delayed. The ERROR result code appears for countries that

do not support blacklisting.

%C<value>—Data Compression Control

Use this command to enable or disable V.42 bis and MNP class 5 data

compression. On-line changes do not take effect until a disconnect occurs.

Result codes:

OK if <value> = 0—3.

ERROR if <value> does not equal 0—3.

Table 3-44: %C<value> Commands

%E<value>—Auto Fallback/Fallforward Control

This command provides the option for the modem to automatically monitor line

quality, to fall back when line quality is insufficient, and to fall forward when line

quality is sufficient.

Result codes:

OK if <value> = 0—2.

ERROR if <value> does not equal 0—2.

Table 3-45: %E<value> Commands

-C<value>—Data Calling Tone

Use this command to enable or disable the data calling tone after a call is

originated. The data calling tone is a tone of a certain frequency and cadence

as specified in V.25, which allows remote data/FAX/voice discrimination. The

frequency is 1300 Hz with a cadence of 0.5 s on and 2.0 s off.

Command Function

%C0 V.42 bis/MNP 5 disabled. No data compression.

%C1 V.42 bis/MNP 5 enabled. Data compression enabled (default).

%C2

%C3

Command Function

%E0 Disables fallback/fallforward.

%E1 Enables fallback and disable fallforward.

%E2 Enables fallback/fallforward (default).

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US Robotics 56 K SOFTMODEM - COMMAND REFERENCE REV 1 Manuel d'utilisateur Page 37