Reference Information

ECC Commands (Continued)

Command

(Conexant)

 

 

+ER: a

Select error control protocol: NONE=error control not in use,

 

LAPM=V.42 LAPM protocol, ALT=MNP.

 

 

+ER=n

Error control reporting: 0=disable, 1=enable.

 

 

+ES=a,b,c

Select error control and synchronous mode (b and c are

 

optional).

 

a is requested mode when modem is originator: 0=initiate

 

call with direct mode, 1=initiate call with normal mode,

 

2=initiate V.42 without detection phase, 3=initiate V.42 with

 

detection phase (default), 4=initiate MNP, 6=initiate V.80

 

synchronous access mode when connection is completed.

 

b specifies fallback mode when modem is 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; 3=LAPM

 

error control required; 4=MNP error control required.

 

c specifies fallback mode when modem is answerer or

 

specifies V.80 synchronous access 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; 5=LAPM error control required; 6=MNP

 

error control required; 8=initiate V.80 synchronous access

 

mode when connection complete.

 

 

+ESR=0

Disable selective repeat option in V.42.

 

 

+ETBM=a,

Handle data remaining in modem buffers on call termination

b,c

(b and c are optional):

 

a=0 disconnect occurs immediately and buffered transmit

 

data is discarded.

 

b=0 disconnect occurs immediately and buffered receive

 

data is discarded.

 

c=0 modem does not attempt to deliver buffered data and

 

discards data.

 

 

7–10

Reference Guide