User's Manual

5.0 Hayes Emulation Mode

Table 5-1 (continued). Hayes Compatible Commands.

COMMAND FUNCTION/EXPLANATION

I Product Code Or Checksum

I0 Requests product code.

I1 Requests checksum for the Modem’s software. (Only a

portion of the checksum displayed via the front panel is

displayed in decimal format.)

I2 Requests verification of software checksum.

I3 Requests the following for each EPROM

(programmable memory unit): chip, part and revision

number; checksum.

I4 Reserved.

L Link Dial (L specifies LINK function when used as a

dial command modifier.)

L Speaker Volume *

L0 or L1 Low speaker volume.

L2 Medium volume.

L3 High volume.

M Speaker Control *

M0 Speaker always OFF.

M1 Speaker ON until carrier is detected.

M2 Speaker always ON.

M3 Speaker OFF during dialing; otherwise ON until carrier

is detected.

O Forced On-Line

O0 Forces Modem to on-line state.

O1 Forces Modem to on-line state and initiates equalizer

retrain.

P Pulse Dial No parameters, but the default is T (for

tone dial).

Q Send Result Code

Q0 Send result codes.

Q1 Withhold result codes (quiet).

Q2 Withhold result codes for incoming calls only (quiet

answer).