Multitech MTCMR-H User's Guide download pdf (Page 54)

Chapter 3 – Supported GSM/WCDMA AT Commands

High Speed HSPA-H4 AT Commands Reference Guide (Document S000483A) 54

A Answer Incoming Call

Description: When the product receives a call, it sets the Ring Indicator signal and sends the ASCII

“RING” or “+CRING: <type>” string to the application (+CRING if the cellular result code

+CRC is enabled). Then it waits for the application to accept the call with the ATA command.

Syntax:

Command Responses

Action Command: ATA OK

No Read and Test Commands

Values: No parameters.

Examples:

Command Responses

RING Note: Incoming call

ATA Note: Answer to this incoming call OK Note: Call accepted

ATH Note: Disconnect call OK Note: Call disconnected

D Dial

Description: The ATD command sets a voice or data call. As per GSM 02.30, the dial command also

controls supplementary services.

The Following Emergency Numbers Are Available without

a SIM Card

000, 08, 110, 112, 118, 119, 911 and 999.

The Following Emergency Numbers Are Available with

a SIM Card:

When the EF_ECC file is missing from SIM: 112 and 911.

When SIM includes an EF_ECC file: 112, 911 and any Emergency Numbers

available in the EF_ECC file.

Syntax:

Command Responses

Action Command:

ATD<nb> [<I>] [<G>] [;]

[Depending on GSM sequence]

OK/CONNECT<speed>/NO CARRIER/BUSY/NO ANSWER

No Read and Test Commands

Values: <nb> Destination Phone Number (ASCII string) or GSM Sequence

0-9, *, #, +, A, B, C, D, P

<I> CLIR Supplementary Service Subscription

If present, the CLIR supplementary service subscription is overridden

temporarily for this call only.

I Activate (disable presentation of own phone number to remote)

i Deactivate (enable presentation of own phone number to remote)

<G> CUG Supplementary Service Information

If present, the CUG supplementary service information is overridden temporarily

for this call only.

G Activate

g Deactivate

; For Voice Call

If omitted, the call will be a data call.

<speed> Data Call Connection Speed in bps

300

1200

2400

4800

9600

14400

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