MTCMR-G-F4 Multi-Tech Systems, MTCMR-G-F4 Datasheet - Page 21
![no-image](/images/no-image-200.jpg)
MTCMR-G-F4
Manufacturer Part Number
MTCMR-G-F4
Description
MODEM GPRS QUAD BAND GSM GLOBAL
Manufacturer
Multi-Tech Systems
Series
MultiModem® iCellr
Datasheets
1.MTCMR-G-F4-NAM.pdf
(2 pages)
2.MTCMR-G-F4.pdf
(8 pages)
3.MTCMR-G-F4.pdf
(28 pages)
4.MTCMR-G-F4.pdf
(203 pages)
Specifications of MTCMR-G-F4
Frequency
850MHz, 900MHz, 1.8GHz, 1.9GHz
Applications
General Purpose
Interface
RS-232, USB
Function
Transceiver, Modem
Data Rate - Maximum
115.2kbps
Modulation Or Protocol
GSM, GPRS
Voltage - Supply
9 V ~ 32 V
Package / Case
Module with Case
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Power - Output
-
Sensitivity
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
881-1151
MTCMR-G-F4
MTCMR-G-F4
- MTCMR-G-F4-NAM PDF datasheet
- MTCMR-G-F4 PDF datasheet #2
- MTCMR-G-F4 PDF datasheet #3
- MTCMR-G-F4 PDF datasheet #4
- Current page: 21 of 203
- Download datasheet (884Kb)
Answer a Call A
Remote Disconnection
Extended Error Report +CEER
DTMF Signals +VTD, +VTS
Multi-Tech Systems, Inc. GPRS AT Commands Reference Guide (Document Number S000293J)
Description:
Values:
Syntax:
This message is used by the product to inform the application that an active call has been released by the remote user.
The product sends “NO CARRIER” to the application and sets the DCD signal.
In addition, for AOC, the product can release the call if credit has expired (release cause 68 with +CEER command).
Description:
Values:
Syntax:
+VTD
Description:
Values:
When the product receives a call, it sets the RingInd 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.
No parameters.
ATA
No parameters
AT+CEER
Note: “NO CARRIER” indicates that the AT+CEER information is available for failure diagnosis.
The product enables the user application to send DTMF tones over the GSM network. This command is
used to define tone duration (the default value is 70 ms ± 5 ms according to 3GPP 23.014).
<n> tone duration.
This command gives the cause of call release when the last call set up (originating or answering) failed.
Command
ATA
Note: Answer to this incoming call
ATH
Note: Disconnect call
Command
ATD123456789;
Note: Outgoing voice call
AT+CEER
Note: Ask for reason of release
This refers to an integer <n> that defines the length of tones emitted as a result of the +VTS
command. This does not affect the D command.
A value different than zero causes a tone of duration <n> *100 milliseconds.
A value of zero (default value) causes a tone duration of 70 ms ± 5 ms.
Note: The value is used modulo 256.
Possible responses
NO CARRIER
Note: Call setup failure
+CEER: Error <xxx>
OK
Note: <xxx>is the cause information element values
from GSM recommendation 04.08 or specific Call
accepted
Possible responses
RING
Note: Incoming call
OK
Note: Call accepted
OK
Note: Call disconnected
Chapter 5 – Call Control Commands
21
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