Best Pstn Gprs
USR 4G LTE Modem USR-G781 Industrial Celluar Serial Modem Data Converter to Ethernet Support APN and VPN Network
- Support Dual Frequencies: GSM/GPRS 900/1800MHz.
Check StockDual Band GSM Modem with Wavecom M1306B Q2406B Module Wireless at Commands Data SMS
- (4)Working Frequencies: GSM/GPRS 900/1800Mhz..
- (5)Packing List:1x Modem, 1x Serial Cable,1x Power Adapter,1x Antenna..
Check StockDual Band GSM Modem with Wavecom M1306B Q2406B Module at Commands SMS 900/1800Mhz
- (4)Working Frequencies: GSM/GPRS 900/1800Mhz..
- (5)Packing List:1x Modem, 1x Serial Cable,1x Power Adapter,1x Antenna..
Check StockDual Band GSM Modem with Wavecom M1306B Q2406B Module at Commands Data SMS 900/1800Mhz
- (4)Working Frequencies: GSM/GPRS 900/1800Mhz..
- (5)Packing List:1x Modem, 1x Serial Cable,1x Power Adapter,1x Antenna..
Check StockDIGI XTP9B-PKI-R XTend-PKG-R Serial ~900 MHz RF Modem, 9XTend Replacement, PKG, RS232/485, North America
- Support Quad Frequencies: GSM/GPRS 850/900/1800/1900MHz.
Check StockTaidacent SIM800L GPRS GSM Module Micro SIM Card Core Board GSM Quad Band TTL Serial Port ESP32 ESP8266 SIM800L
- SIM800L GPRS GSM module micro SIM core board quad-band TTL serial port is ESP8266 ESP32.
Check Stock99 Zones Wireless Home Office House Security Burglar Alarm System PIR Motion Sensor Auto Dialer Password
- All-in-one Auto Dialing Home Security System.
- Built-in battery, power failure protection.
Check StockEmergency Wall Telephone Pre-programmed to Auto Dial 911 - RED
- Auto dials any pre-programmed telephone number (911 as default).
- Works on any analog phone line (PSTN, VOIP) that is FSK or DTMF compatible.
- Retains programming even if disconnected from phoneline (EEPROM technology)..
- Telephone line powered (no external power required)..
- Easy to install and re-program (Comes with wallplate and do-it-yourself programming instructions).
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RedTagCanada SIM900 Quad Band GSM GPRS Quad-Band Modules 2G Shield Development Board for R3 Mega with Antenna for Arduino SCM & DIY Kits
- ... - could work on GSM networks in all countries around the world, work with Uno Mega..
- This is a new version (64M version), SMS support MMS: Multimedia message and Short Message Service - so it is possible to send small amounts of data over the network (ASCII or raw hexadecimal).
- The shield allows you to get SMS, MMS, GPRS and audio via UART by sending AT commands (GSM 07.07, 07.05 and SIMCOM enhanced to commands). The shield also has the 12 GPIOs, 2 PWMs and an ADC of the SIM900 module (They are all 2V8 logic) present on board..
- Application: M2M (Machine 2 Machine) Applications.Remote control of appliances.Remote Weather Station or Wireless Sensor Network.Vehicle tracking system with a GPS module.Good to learn GSM / GPRS mobile phone development, control development of remote equipment, wireless meter reading, smart appliances, ultra long distance control, etc..
- Control via AT commands - Standard Commands: GSM 07.07 & 07.05 | Enhanced.
- Power jack - connected to external 4.8~5VDC power supply, Antenna interface - connected to external antenna, Serial port select - select either software serial port or hardware serial port to be connected to GPRS Shield.
Check StockEngenius DURAFON-SIP Phone System DURAFON SIP SYSTEM Long Range Cordless Telephone System Retail
- Works with any IP-PBX that supports standard SIP protocols.
- Up to 250,000 sq ft of facility coverage.
Check StockICP DAS GTM-201P-3GWA Industrial Tri-Band 3G/GSM/GPRS WCDMA Cellular Modem with GPS Function
- Applications:Remote Data Monitoring and Control, Water, gas and oil flow metering and schedule, Power station monitoring and control, Oil field, weather forecast, environmental protection, street lamp monitoring and control, Fleet management, Vending Machine, etc..
- Industrial design, making it a reliable cellular solution for data collection and transmission.
- Reliable GSM/GPRS/EDGE/UMTS/HSPA network connectivity, providing fast and cost-effective long-range wireless applications.
- Quad-band GSM/GPRS/EDGE 850/900/1800/1900 MHz.
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Module A9G Board, A9G Development Board GSM/GPRS + GPS/BDS Module Wireless Data Transmission + Positioning Board
- ★[A9G Development Board] – The A9G development board is a versatile development board based on A9G GPRS / GSM + GPS / BDS module that can be used to validate the basic communication functions and peripheral functions of the A9G module..
- ★[Multifunction] – A9G development board with the basic phone / SMS, GPRS networking communications, GPS / BDS dual-mode positioning capabilities..
- ★[Specification] – A9G development board contains a lithium battery charging management, microphone, speaker interface, USB communication interface, multiple user keys / led, TF card slot, accelerometer, I2C2 interface, ADC interface..
- ★[External Interface] – A9G development board camera expansion board, an external 30W / 200W camera.A9G development board coin machine expansion board, can be external traditional coin machine..
- ★[After-Sale Service] — Good day. every effort to provide customers with satisfactory service.If you have ANY questions, please email us and BELIEVE us, we will reply you soon..
Check StockGrandstream GXP2135 IP Phone 8-Units with UCM6208 8 Port IP PBX Gigabit
- Integrated 2 pstn trunk fxo ports, 2 analog telephone FXS ports with lifeline capability in case of power outage, and up to 50 SIP trunk accounts.
- 1 GHz arm cortex A8 application processor, large memory (512MB ddr Ram, 4GB nand flash), and dedicated high-performance multi-core dsp array for advanced voice processing.
- Gigabit network port(s) with integrated PoE, USB, SD card.
- integrated NAT router with advanced QoS support.
- Supports up to 500 users, 50 SIP trunks, and up to 30 concurrent calls.
- Comprehensive security protection using SRTP, TLS and HTTPS with hardware encryption accelerator, Fail2ban, Whitelist, Blacklist, alerts and more to protect against attacks.
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