Gsm Modem With Voice Function
Overview
Product sourcing insights & recommendations


The market for 'GSM modems with voice function' is undergoing a critical transition from legacy 2G/3G circuits to VoLTE-based infrastructure Alibaba. Driven by global network sunsetting and the rise of human-in-the-loop IoT, modern modems now serve as essential interfaces for emergency notifications, rural connectivity, and business continuity systems SierrawirelessAlibaba.
Key Market Trends & Insights
* The VoLTE Mandate: As carriers globally deactivate 2G/3G networks, VoLTE-certified hardware has become a baseline requirement. Legacy "Circuit Switched Fallback" (CSFB) devices are being rapidly phased out AlibabaAlibaba.
* IoT Evolution: Beyond data transmission, adding voice to IoT brings "human intervention" to critical scenarios like connected elevators, lone worker safety, and industrial alarm monitoring AltairsemiAlibaba.
* Hardware Shift: Modern solutions have pivoted to Fixed Wireless Terminals (FWT) and VoIP Gateways. These devices feature RJ11 ports to bridge digital cellular signals with traditional analog phone systems, effectively replacing landlines in rural or mobile contexts AlibabaAlibaba.
* Economic Drivers: High-speed 4G LTE modems with voice support are now highly accessible, with enterprise-grade modules available under $80 and USB dongles under $40 Alibaba.
Top Product Solutions & Manufacturers
I have identified several high-performance products and verified manufacturers specializing in 4G LTE modems with voice/VoLTE functionality and RJ11 port integration.
The leading suppliers in this space, such as Shenzhen Etross Telecom, offer extensive customization for voice protocols and hardware interfaces, catering specifically to global exports and industrial compliance.
Detailed specifications, comparative pricing, and full manufacturer profiles are included in the files below.
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Gsm Modem With Voice Function Volte Support 4g Lte Rj11 Port
Products · Top picks & verified manufacturers

1 SIM GSM 3G 4G Elevator Cellular Modem FWT Fixed Wireless Terminal 8848 for New Zealand Australia
Shenzhen Elefine Technology Co., Ltd.verified🇨🇳CN6 yrs
4g Lte Voip Gsm Gateway 4G Telephone RJ11 4G VOLTE 4G Router 4g Lte Modem Voice Call Voip CPE
Shenzhen Gten Technology Co., Limited.🇨🇳CN13 yrs
USA /EU /Asia 4G VOLTE 1 Sim Fwt 8848/gsm Fct / Fwt Pstn Elevator Emergency Phone for Telephone Voice Call /alarm System
Shenzhen Etross Telecom Co., Ltd.🇨🇳CN16 yrs
Single Sim Card IMEI Changeable GSM Gateway 4g Volte
Shenzhen Junhaoyue Technology Co., Ltd.🇨🇳CN6 yrs
M2M Industrial Lte 4g Modem RS232 Gsm Modem Vocie/data Transfer 4g Modem
Shenzhen Bailingjia Technology Co., Ltd.🇨🇳CN17 yrs
4G LTE Modem Quectel EC25 Gsm Modem with RS232 Serial Port for Data Transmission
Shenzhen FML Trade Co., Ltd.🇨🇳CN5 yrs
4g Lte Modem Gsm Gateway 4g Wifi Router Machine SMS/MMS/VOICE/USSD/GPRS/GPS/STK Voice Calling Usb Dongle
Shenzhen Bailingjia Technology Co., Ltd.🇨🇳CN14 yrs
USR-G781 Industrial 4G FDD/TD LTE Router with RS485 RS232 Interface Transparent Transmission & HTTPD Mode
Jinan Usr Iot Technology Limitedverified🇨🇳CN14 yrs
2G 3G 4G Modem RS232 RS485 Support SMS WCDMA HSDPA USB GSM LTE Modem
Shenzhen Hurryup Technology Co., Ltd.verified🇨🇳CN15 yrs
High Quality! GPRS SMS Modem with M35 GSM Modem Chip
Shenzhen Yun Da Tong Technology Co., Ltd.🇨🇳CN10 yrs
gsm modem SIMCOM A7600 4G LTE modem
Rtx Technology Co., Limited🇨🇳CN8 yrs
2G 3G 4G Modem RS232 RS485 Support SMS WCDMA HSDPA USB GSM LTE Modem
Shenzhen Huaketon Electronics Co., Ltd.🇨🇳CN1 yr
New And Original GSM-4GLTEGPS 4G LTE GSM MODEM WITH GPS, RS232 RF and Wireless/RF Receiver, Transmitter, and Transceiver
Shenzhen Kaisheng Century Electronics Co., Ltd.verified🇨🇳CN3 yrs
USR-G771-E Europe External Wireless LTE CAT 1 4G GSM RS232 RS485 MQTT SMS Serial Cellular Modem Sim Card Slot in Stock
Shenzhen Qianbao Technology Co., Ltd.🇨🇳CN4 yrs
6 Antenna Gsm Modem 4g Wireless Modem for Android Tablet ,1200mbps Dual Band 2.4G 5.8G Router with Sim Card Slot
Shenzhen Tuoshi Technology Co., Ltd.🇨🇳CN17 yrs
4G lte gsm wifi modem router with dual sim sms gateway hardware cdma
Xiamen Bivocom Technologies Co., Ltd.🇨🇳CN9 yrs
GSM-4GLTEGPS BOM 4G LTE GSM MODEM WITH GPS, RS232 GSM-4GLTEGPS
Shenzhen Longgang Ruru Trading Firm🇨🇳CN3 yrs
Dialog Axiata Sri Lanka Car Wifi Gsm 2g 3g 4g Voip Modem Wireless Router with Sim Card Slot
Shenzhen iStartek Technology Co., Ltd.verified🇨🇳CN8 yrs
B625pro LAN RJ45 3 Port Gsm Modem SIM Card 4G LTE 5g Usb Modem 300Mbps 4200mAh Battery 32 Users CPE Portable Wifi Router
Shenzhen Haichangxing Technology Co., Ltd.🇨🇳CN6 yrs
KIT-GSM-L BOM Service KIT - GSM MODEM LP040 RXXXX LOG. KIT-GSM-L
Dongguan Shijie Chipin Electronic Trading Firm🇨🇳CN4 yrs
Hot Selling 4g LTE Usb Dongle Portable Wifi Universal Unlock SIM Card Slot 150Mbps Network Support 4g Gsm Modem Wifi Device
Huizhou Chuangjing Technology Co., Ltd.verified🇨🇳CN4 yrs
3G 4G Remote GPRS Data Transmit Unit, 800/900mhz Gsm Modem, Rs232 Rs485 Gsm Modem Sim900
Chongqing Blue Jay Technology Co., Ltd.🇨🇳CN13 yrs
FourFaith F2103 SMS Receiver Water Meter WiFi GSM Serial Modem RF Module
Xiamen Four-Faith Communication Technology Co., Ltd.🇨🇳CN16 yrsRelated Searches
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Sources & References
25 sources cited · Verified industry data & reports

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