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≥2 Units

free sms server 32 ports smpp gsm sms gateways/bulk gsm sms modems/512 sim server sms gateway with open API

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Quick Details

GSM: 850/900/1800/1900Mhz
Place of Origin: Guangdong China
Warranty: 12 months warranty
Centralized Management: Ejoin Terminal Management System
SIM slots: 512
Power supply: 100-240VAC 12V/5A 50-60 Hz
Transmission Rate: 2Mbps
Encryption: Ejoin,VOS2000,RC4,XOP.Base64
Model Number: ACOM632G-512
Certification: CE ISO
Brand Name: EJOIN
bandwidth requested: 2M for 32 channels concurrent
Type: Wireless
Products Status: Stock
Style: External
Protocol: HTTP/SMPP
Interface Type: RJ-45
Application: sms verify code, SMS termination, SIM recharge blast sms/ussd
Packaging Detail: one canton with POE foam. 5 cantons in a big canton with POE foam.
Selling Units: Single item
Single package size: 45X28X5 cm
Single gross weight: 8.0 KG
Package Preview: https://sc04.alicdn.com/kf/HTB1SP3Ej4HI8KJjy1zbq6yxdpXaS.jpg_640x640.jpg,https://sc04.alicdn.com/kf/HTB1VHNgknnI8KJjy0Ffq6AdoVXah.jpg_640x640.jpg
Shenzhen Ejoin Technology Co., Ltd.
Gold Supplier
Response Time
On-time delivery rate
US$ 120,000+
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Product Description

Ejoin HTTP API sms modems 512 sim 32 ports support bulk sms lms

  ACOM632G-512 is a multi-functional and high performance product, which supports SMS sending, receiving and group sending. it’s different from traditional modem, it’s based on IP network, with the SMPP/HTTP API, customers can develop SMS server easily. It is widely used in bulk sms like  sms verify code, SMS termination, wallet payment system,automated appointment reminder service,SIM recharge and corporate SMS,mobile marketing etc.

Model: Ejoin ACOM632G-512

SIM slots:512 
 GSM 850/900/1800/1900Mhz 

Weight: 8kg
Dimension:45cm* 28cm*5cm

SMPP server/client

For sms marketing

verification code receiving

SMS termination

Features For Anti Sim Blocking

* Internet data simulation
* IMEI modify&Band
* Port Inter-calling/sms
* Station intelligent switching
* Multiple SMS control
* PIN modify

* SIM card rotation

Special Features

* Forward sms to email
* AT/USSD command
* SMPP server/client
* HTTP API for SMS/USSD/AT Command
* SMS checking

* Get SIM Number/Balance auto
* SMS statistics
* Auto Recharge
* Support SIM POOL
* sms Plan/Prefix Inward Translation/Intelligent Routing

Maintenance and Management

* Friendly Web Management
* English and Chinese Interface
* Role Management
* USB Serial COM
* Configuration Backup and Restore
* Support HTTP/TFTP Upgrade
* Ejoin Remote Management System(ERMS)
* Ejoin Centralized Management system(ETMS)
* Ejoin Encryption

Web Management
Quick Contact Way

Any query, Contact 24 hours online service May for better solutions as below:



SMS Modem Series

New!! ACOM632-64

support 32 Full size SIMS
32 channels 64 SIM 


8 channels 8 SIM


16 channels 16 SIM


16 channels 64 SIM


32 channels 32 SIM


256 SIM slots
Packing & Delivery


One device with accessories in paper box

Five devices in one carton with built-in EPE foam


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.


1.What is main functions of Ejoin 32 ports 512 SIM rotation HTTP SMPP sms modem?
For sms verify code, SMS termination, automated appintment reminder service,SIM recharge and corporate SMS,mobile marketing etc.

2. What is the advantages about Ejoin 512 sim 32 ports sms modem?
All process via Web

One port 16 sim for sim rotation
up to 20 sms per port per minute
more easy intergrate with HTTP API or SMPP server/client

3. Can you offer sms software for Ejoin sms modem?
yes, we have 2 sms system:
*EIMS1.0 for bulk sms sending, receiving and forwarding online.
*EIMS2.0 special for sms termination business support different roles management

4. Is there any devices for manage sims remotely ?
Yes , we have simbank128 and simbank 256

5. If I face any issues about the devices , how can i solve it ?
Please contact 24 hours online service Marrisa with contact way as below for power tech support service.