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Appearance

Module Picture 

Part

M10 GSM/GPRS

M12-D
GSM/GPRS

M20 GSM/GPRS

M35 GSM/GPRS

M50 GSM/GPRS

M72-D 
GSM/GPRS

Packaging

64-pin SMD Quad-band module

64-pin SMD Dual-band module

50-pin B2B Connector Quad-band module

42－pin SMD
Quad-band module

110－pin SMD
Quad-band module

30-pin SMD Dual-band module

General Features

Radio Bands (MHz) 

850/900/ 1800/1900

900/1800

850/900/ 1800/1900

850/900/ 1800/1900

850/900/ 1800/1900

900/1800

GPRS Mult-slot Class 

12,1-12 configured

12,1-12 configured

Class:12/10/8

12,1-12 configured

12,1-12 configured

12,1-12 configured 

Temperature Range

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

Dimensions 

29.0*29.0*3.6mm

29.0*29.0*3.6mm

35.0*32.5.0*2.95mm

19.9*23.6*2.65mm

24.5*25.3*2.6mm

27.50*24.0*3.6mm

Weight 

6.0g

6.0g

6.0g

3.0g

3.0g

5.0g

Certificates

Certificates

CE/GCF/PTCRB/FCC/ TA/ NCC 

CE

CE

CE/NAL

Network Protocols

PPP

Yes

Yes

Yes

Yes

Yes

Yes

TCP/UDP

Yes

Yes

Yes

Yes

Yes

Yes

HTTP

Yes

Yes

Yes

Yes

Yes

Yes

FTP

Yes

Yes

Yes

Yes

Yes

Yes

MMS

Yes

Yes

Yes

No

Yes

No

SMTP

Yes

Yes

Yes

No

Yes

No

SMS

SMS  

Point-to-point MO&MT  SMS Cell Broadcast Text And PDU Mode

Point-to-point MO&MT SMS Cell Broadcast Text And PDU Mode

Point-to-point MO&MT SMS Cell Broadcast Text And PDU Mode

Point-to-point MO&MT SMS Cell Broadcast Text And PDU Mode

Point-to-point MO&MT SMS Cell Broadcast Text And PDU Mode

Point-to-point MO&MT SMS Cell Broadcast Text And PDU Mode

Specifications for voice

Speech Code Modes 

HR,FR,EFR,AMR

HR,FR,EFR,AMR

HR,FR,EFR,AMR

HR,FR,EFR,AMR

HR,FR,EFR,AMR

No

Echo Arithmetic

Echo cancellation
Echo suppression
Noise reduction

Echo cancellation
Echo suppression
Noise reduction

Echo cancellation
Echo suppression
Noise reduction

Echo cancellation
Echo suppression
Noise reduction

Echo cancellation
Echo suppression
Noise reduction

No

Interfaces

External SIM

3V/1.8V

3V/1.8V

3V/1.8V

3V/1.8V

3V/1.8V

3V/1.8V

Embedded SIM IC

Yes

No

No

No

No

No

Embedded SIM Card Holder

No

No

No

No

No

No

Audio Analog Interfaces

Two input /  Two output

Two input /  Two output

Two input /  Two output

Two input /  Two output

Two input /  Two output

Two input  /  Three output

Audio Digital PCM Interface

No

No

Yes

No

Yes

No

RTC Backup

Yes

Yes

Yes

Yes

Yes

No

Serial Interface

3

3

2

2

3

2

Antenna Connector

No

No

Yes

No

No

No

GPIOs

Yes

Yes

No

No

No

No

SD Card Interface

Yes

Yes

No

No

Yes

No

Recommended Applications

Automatic Meter Reading

★

★★

★★

Automotive

★

★

★

★

★★

Sales and Payment

★

★

★

★

★

Security

★ 

★

★

★

★

★

Tracking and Tracing

★

★

★

★★

★

Remote Maintenance and Control

★

★

★

★

★

★

Mobile Computing

★

★

★

★

★

Healthcare

★★

★★