Set Circuit Data Terminal Ready (Dtr) Function Mode &D; Command Syntax; Interface Description; Defined Values - Huawei EM770W At Command Interface Specification

3
applies to IP STACK PPP)
4
NOTE: AT&C will set value to 0.
3.30 Set circuit Data Terminal Ready (DTR) function
mode &D

3.30.1 Command Syntax

Command
&D[value]

3.30.2 Interface Description

The command sets how the TA responds when circuit 108/2 (DTR) is changed from
ON to OFF during data mode..

3.30.3 Defined Values

<value>:
0
1
2
auto-answer is off. (default)
NOTE: AT&D will set value to 0.

3.31 TE2-MT2 Character Framing +ICF

3.31.1 command syntax
Command
AT+ICF=[<format>[,<parity
>]]
AT+ICF?
Issue 18 (2009-06-22)
Circuit 109 (CF) ON. DCD is Low. High during a packet switched call (only
Circuit 109 (CF) ON. DCD is Low. High on socket TCP
TA ignores status of DTR.
Change to command mode while retaining the connected call.
Disconnect data call, change to command mode. During state DTR = OFF
Commercial in Confidence
HUAWEI UMTS M2M Module V100R001
AT Command Interface Specification
Possible response(s)
<CR><LF>OK<CR><LF>
In case of MS-related error:
<CR><LF>+CME ERROR: <err><CR><LF>
<CR><LF>OK<CR><LF>
<CR><LF>ERROR <CR><LF>
<CR><LF>+ICF: < format >[,<parity
>]<CR><LF><CR><LF>OK<CR><LF>
Possible response(s)
Page 46 of 169