Specifications

HE863 family AT commands reference guide

80377ST10083a Rev.4 – 2012-02-01

&S - Data Set Ready (DSR) Control

AT&S[<n>]

Set command controls the RS232 DSR pin behaviour.

Parameter:

<n>

0 - always High

1 - follows the GSM traffic channel indication.

2 - High when connected

3 - High when device is ready to receive commands (factory default).

Note: if option 1 is selected then DSR is tied High when the device receives from

the network the UMTS traffic channel indication.

Note: in power saving mode the DSR pin is always tied Low

Note: if parameter is omitted, the command has the same behaviour of AT&S0

3.5.2.2.10. Ring (RI) Control - \R

\R - Ring (RI) Control

AT\R[<n>]

Set command controls the RING output pin behaviour.

Parameter:

<n>

0 - RING on during ringing and further connection

1 - RING on during ringing (factory default)

2 - RING follows the ring signal

Note: to check the ring option status use the &V command.

Note: if parameter is omitted, the command has the same behaviour of AT\R0

3.5.2.3. Call Control

3.5.2.3.1. Dial - D

D – Dial

ATD<number>[;]

The V.24ter dial command D lists characters that may be used in a dialing string

for making a call or controlling supplementary services in accordance with

GSM02.30 and initiates the indicated kind of call. No further commands may

follow in the command line.

Note: V.25ter Dialing Digits

1 2 3 4 5 6 7 8 9 0 * # + A B C (implementation of these characters is mandatory

for GSM/ UMTS).

D (implementation of this character is optional for GSM/UMTS, and it is ignored)