Hardware manual
5901 High Speed Dialup Modem Hardware Manual
October 19, 2007
48
modem is operating as the originator, and optionally specifies the acceptable fallback mode of
operation when the modem is operating as the answerer. It accepts three numeric subparameters:
Command: +ES=[x[,y[,z]]]
x Decimal number which specifies the initial requested mode of operation when the modem is
operating as the originator. The options are:
0 Initiate call with Direct Mode.
1 Initiate call with Normal Mode (also referred to as Buffered Mode) only.
2 Initiate V.42 without Detection Phase. If V.8 is in use, disable V.42 Detection
Phase.
3 Initiate V.42 with Detection Phase. (Default.)
4 Initiate MNP.
6 Initiate V.80 Synchronous Access Mode when connection is completed, and Data
State is entered. (See +ESA and +ITF commands.)
7 Initiate Frame Tunneling Mode when connection is complete, and Data Mode is
entered.
y Decimal number which specifies the acceptable fallback mode of operation when the
modem is operating as the originator.
0 LAPM, MNP, or Normal Mode error control optional. (Default.)
1 LAPM, MNP, or Direct Mode error control optional.
2 LAPM or MNP error control required; disconnect if error control is not established.
3 LAPM error control required; disconnect if error control is not established.
4 MNP error control required; disconnect if error control is not established.
z Decimal number which specifies the acceptable fallback mode of operation when the
modem is operating as the answerer or specifies V.80 Synchronous Access Mode.
0 Direct Mode.
1 Error control disabled, use Normal Mode.
2 LAPM, MNP, or Normal Mode error control optional. (Default.)
3 LAPM, MNP, or Direct Mode error control optional.
4 LAPM or MNP error control required; disconnect if error control is not established.
5 LAPM error control required; disconnect if error control is not established.
6 MNP error control required; disconnect if error control is not established.
8 Initiate V.80 Synchronous Access Mode when connection is completed, and Data
State is entered (see +ESA and +ITF commands).
9 Initiate Frame Tunneling Mode when connection is complete, and Data Mode is
entered.