At&D Set Circuit Data Terminal Ready (Dtr) Function Mode; At&F Set All Current Parameters To Manufacturer Defaults - Siemens TC37 Module At Command Reference

AT Command Set
2.35 AT&D Set circuit Data Terminal Ready (DTR) function mode
Write command Response
AT&D[<value>]
This command is only intended for data calls. The <value> parameter determines
how the TA responds when circuit 108/2 (DTR) is changed from ON to OFF
during data mode.
OK
Parameter
<value>
Reference Note
V.25ter
Line state refers to RS-232 levels.
2.36 AT&F Set all current parameters to manufacturer defaults
Execute command Response
AT&F[value]
TA sets all current parameters to the manufacturer defined profile.
OK
Parameter
<value>
Reference Note
· List of parameters reset to manufacturer default (sorted by the associated AT
V.25ter
commands):
E, Q, V, X, +CBST, +CRLP, +CRC, +CR, +CNMI, +CMEE, +CSMS, ^SCKS,
^SACM, +CREG, +CLIP, the S Parameters, &D, &C, &S
· In addition to the default profile, you can store an individual one with AT&W. To
alternate between the two profiles enter either ATZ (loads user profile) or AT&F
(restores factory profile). Refer to Chapter 2.39 for AT&W and Chapter 2.33 for
ATZ.
TC3X_ATC_01_V04.00
0 TA ignores status on DTR.
1 ON->OFF on DTR: Change to command mode while retaining
the connected call.
2 ON->OFF on DTR: Disconnect data call, change to command
mode. During state DTR = OFF is auto-answer off.
0 set all TA parameters to manufacturer default
Page 34 of 204 29.05.2002