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Quality choice Ejointech 4 port gsm modem pool bulk sms gateway

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Quick Details

SIP specification: SIP/2.0 RFC3261,Session timer RFC4028,STUN
Warranty: 12 months
Place of Origin: Guangdong China
Support: Bulk SMS / USSD / AT Command/SMPP HTTP API
Model Number: ACOM604G-4
Brand Name: Ejointech
Type: VoIP Gateway
Number of Channels: 4
Product name: Quality choice Ejointech 4 port gsm modem pool bulk sms gateway
Tech support: lifetime
Frequency: Quad-band 850/900/1800/1900MHz
Sim slots: 4
Packaging Detail: Blank carton package/Quality choice Ejointech 4 port gsm modem pool bulk sms gateway
Selling Units: Single item
Single package size: 30X16X7 cm
Single gross weight: 3.5 KG
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Shenzhen Ejoin Technology Co., Ltd.
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Response Rate
On-time delivery rate
US$ 120,000+
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Product Description

Quality choice Ejointech 4 port gsm modem pool bulk sms gateway


ACOM604-04 SMS Modem

The ACOM604 is a modem pool for bulk SMS and MMS, based on the Internet Protocol technique.The feature of the remote management and control makes modem pools in different areas and countries conveniently to send bulk SMS by a same device with controlling software.

Special Features

•LCR automatically route
•Remote Management and Control via Internet
•Receiving and sending bulk SMS freely
•AT command directly
•Support USSD balance enquiry, billing
•Automatically lock/switch SIM card according to its balance, balance alarm
•Master and slave EPSIP server
•SIM card hot plug
•IMEI modified


•Support 4 Channels
•SMS receiving/bulk sending, AT command compatible
•Support Ejoin registration and peer-to-peer
•Support encryption: RC4, VOS and Ejoin private etc.
•Support Phone book, 9600 SMS and 4800MMS per hour
•Update firmware by local or Internet
•Field proven compatible with Asterisk-based soft switches


•Remote Management Center

The remote management center could be an Internet SMS Modem Pool, a gateway, even an usual computer as the service computer. Users can access to the service computer by any personal network device like personal computer or smart phone installed the relative software application. Users make use of the GSM,wifi or USB cable to visit the service computer and manage other Internet SMS Modem Pools in different areas and countries.

Downlink(ACOM604 Internet SMS Modem Pool)

•Mobility Extension

Most of mobile carriers offer zero or almost zero tariff for calls within a group of SIMs. Mobile phones can be considered as "mobile extensions" of the telephone system. Additionally, "Least Cost Router" permits to select the cheapest route for any SMS.

•Bulk SMS Sending

The device supports EPSIP SMS sending and receiving, used with the SIP server as a SMS gateway.

SMS Verficiation/Confirmation

Fast and secure transactions
Fail-safe user identification
SMS Verification Code
Automated appointment reminder service
Wallet Payment System
USSD Bill Transfer

SMS Marketing

What better way to alert your customers to time-sensitive marketing campaigns than with a medium of communication used by over 5.5 billion people, globally.Use EjoinTech sms modem to create engaging and interactive marketing campaigns, re-initiate relationships with old clients, strengthen loyalty programs, drive traffic online, and heighten engagement, all through the power of SMS Marketing events and promotions Nurture leads and awareness.


Product Name
Quality choice Ejointech 4 port gsm modem pool bulk sms gateway 
Number of Channels
Quad-band 850/900/1800/1900MHZ
Network Protocols
SMS Control Protocols
EPSIP (Ejoin Private SMS Internet Protocol)
Configuration and
Web-based GUI
Console, Telnet command line
Remote Management Center
Telephony Features
·Phone book
·White list
Number of Ports
1 WAN 10/100Base-T Ethernet(RJ-45 connector)
1 LAN 10/100Base-T Ethernet(RJ-45 connector)
1 console(USB connector)
1 power and 8 groups of signal strength and running indicator(defining...)
Power Supply
100-240VAC, 50 - 60 Hz
Operating Environment
·Operating temperature: - 20ºC~50ºC
·Operating humidity: 10 – 90%
12 Months

Sms termination

Sms Modem Series

1) Web Management and control
2) at least 20 SMS per port per minute
3)Support 8/16/32/64Channels, Up to 512 sim for auto sim switch by SMS limit per sim per day
4) 2G/3G/4G models all available
5) Free SMS software for bulk sms sending,receiving and forwarding online
6) HTTP SMS API/USSD API/AT Command/SMPP server/client for intergrate your systems easily
7) Free firmware version update online and free lifetime tech support

Detailed Images

1.Web UI Management Software inside For VoIP gsm gateways and SMS Modems
* IMEI change/base station change/auto sim
 switch etc

2.EJOIN Free Terminal Centralized Management System For Monitoring all status
*CDR checking/SMS query/sim balance/sim status/configuration and new firmware upgraded remotely

3.EJOIN Free SMS Software Compatible With Ejoin VoIP Gateway&HTTP SMPP SMS modem

*support upload bulk contacts and contents in excel format for bulk sms sending, receiving and forwarding online

Packing & Delivery

Once we get your order,we can find the lowest shipping cost for you via DHL,Aremax,FedEx,UPS,TNT,EMS etc and offer special packing for custom clearence.

Our Company

Shenzhen Ejoin Technology Co.,Ltd is a professional developer and manufacture specialized in VoIP hardware and VoIP solution for more than 15 years. We provide high quality 2G/3G/4G VoIP gateway, SMS modem, Analog gateway , Media gateway, IP phones and Value added applications as well as specialized and Flexible VoIP communication solutions based-SIP,OEM and ODM services for carriers and providers around the world.

Ejointech 2G/3G/4G VoIP gateway are based on industry standard protocols, which are fully compatible with Asterisk and well known VoIP device providers (Cisco,Huawei etc), for deploying flexibly many communication solutions, to bring deeper clarity and better end-user communication experience.

Customer satisfaction is our eternal pursuit. We are looking forward to creating a brighter future with all our customers!

Our service

Contact us

Skype: ejointech.m
Tel/Wechat/What'sapp:+86 13632681106

If you want to know more information, please contact me.