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Ejoin 32 Ports 2g/3g/4g VoIP Gateway supporting 32 /2g/3g/4g sim bank

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Quick Details

Voice Codecs: G.729A, G.723.1, G.711 a/ulaw, iLBC
Warranty: 12 months
Place of Origin: Guangdong China
Lanuage: English/Chinese
Port: 32
Model Number: ACOM532G-32
Main function: Voice call ,send/receive sms
Brand Name: Ejoin
Device size: 44x22x4.5cm
Type: VoIP Gateway
Sim cards: 32
Frequency: 2G/3G/4G
Protocol: SIP/2.0 RFC3261
Net Weight: 4kg
Packaging Detail: 1 piece one small box 4 piece one carton
Selling Units: Single item
Single package size: 45X30X8 cm
Single gross weight: 5.0 KG
Package Preview: https://sc04.alicdn.com/kf/HTB1_zmVUwTqK1RjSZPhq6xfOFXa6.jpg_640x640.jpg
Shenzhen Ejoin Technology Co., Ltd.
Gold Supplier
Response Time
On-time delivery rate
US$ 180,000+
Visit Store
Quick Sales Contact

7*24 hours Online Service

Skype: ejointech.v
Wechat: Ma_Kye

Equipment Consulting

* CE,ROHS,FCC,ISO9001certificates
* Online demo available
* Step by step training /guide

After-Sale Service

* Free Lifetime Technical Support
* 12 months warranty
* Free Firmware Version Upgraded Online

Products Description

Ejoin 32 port 32 sim GOIP GSM Gateway

ACOM532G-32 is a multi-functional and high performance product, which convert GSM network to VoIP.It supports 32 calls concurrent.With multiple call duration control and unique human behavior , customers can get high performance easily. It is widely used in call termination,call center, enterprise communication,sim active, sms verify code, sms termination, automated appointment reminder service,sim recharge and corporate sms,sms mobile marketing,wallet payment system etc.

1) Support 8/16/32 Ports,  auto sim switch by call minutes/SMS limit per sim/day.
2) 2G/3G/4G models all available.
3) Support work with Call Center Software, IPPBX, 3CX,Elastic,Asterisk, Vos,VPS, Freeswitch, Softswitch Cicso etc.
4) Free Firmware Version upgrade online and Remote Centralized Management.
5) Free lifetime Tech Support 7x24x365

VoIP 32 Port 32 sim GSM Gateway Specification (ACOM532G-32)
Model Name
VoIP 32 Port 32 SIM GSM Gateway
Frequency Bands
2G/3G/4G( seperate models)
3G: 800/850/900/1700/1800/1900/2000/2100Mhz

(4G Frequency difference frequencies for different areas,contact whatsapp +18680091963 for confirm) 
RJ45 Ethernet
Device Size
SIP Specification
SIP/2.0 RFC3261
Session Timer RFC4028
Network Protocols
Telephony Features
Hot-line call ,Dial plan, Speed dial, Phone book, CDR, LCR, White/Black list
Telephony Signaling
DTMF tone dectection/generation
DTMF relay: in-band, RFC 2833 and SIP info
Call forward: unconditional, no answer and busy
N-way conferencing
Caller ID display/generation, Mobile Number Portability
Voice Capability
Voice codecs:G729a/b/e,G723.1,G.711 A/U law, iLBC
Echo cancellation
Silence suppression & detection(VAD, CNG)
Adaptive jitter buffer
Volume adjustable
IVR customized
Anti-sim blockage Solution
Human behaviour feature
* IMEI modify & Band & PIN Modify
* Port Inter-calling/sms
* Base Station intelligent switching
* Multiple SMS control
* Access to internet surfing
* Call wait
* Call duration control 
* Internet surfing
SMS Capability
WEB/HTTP/SMPP Client & Server
Bulk Receive/Send SMS
SMS to Email, Email to SMS
Flash sms,silent sms, emoji and long sms
Number of Ports
1 WAN 10/100Base-T Ethernet(RJ-45 connector)
1 Console(USB)
1 Power and 32 groups of card online and running status indicator
Power Supply
100-240VAC, 50 - 60 Hz IN, 12V/8A OUT
Operating Environment
Operating temperature: 0 - 50ºC
Operating humidity: 10 – 90%RH
12 Months

Technical Parameter

* Telephony Features: Hot-line call ,Dial plan, Speed dial, Phone book, CDR, LCR, White/Black list
Silence suppression & detection(VAD, CNG)
* 1 WAN 10/100Base-T Ethernet(RJ-45 connector)
* 1 USB console
* Power Supply: 100-240VAC, 50 - 60 Hz in, 12V/3A out
* Warranty: 12 months
* Operating temperature: 0 - 50ºC
* Operating humidity: 10 – 90%RH

Special Features

* SMS Send, Receive and Forward online
* 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
* VPN(pptp)
* Fake Ring-back
* 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

* Ejoin Encryption

GSM Gateway Software

SIP Server Settings

IMEI auto Change/Custmized gernerate

Auto SIM switch/ rotation settings
Anti-sim blockage settings

Call duration limited Settings

SMS Receive/Send

Call Statistics

More Ejoin Softwares for Gateway

ETMS: monitor all status of all your ejoin voip gateway in one page
Remote access/CDR checking/SMS Query
Auto recharge/IMEI/sim status/balance checking/Multi devices
ESPS: For manage gateway and simpool, and set your own SIM assignation strategy
Role management
Multi accounts

SMS Software for bulk send/receive sms

SMS termination blast SMS sending,receiving and forwarding online support both http/smpp
AT/USSD command
HTTP API, SMPP server/client
Auto get sim number
Alert for low balance/Auto recharge
Call/SMS statistics
Multiple users for sending messages

Warranty & Package
32 port 32 sim goip gsm gateway package included
Package size

Gross weight: 5kg
Net weight: 4kg

32 pieces antennas
1 UK/EU/US/AU/JP/CCC power plug for reference
1 power adaptor with 12V/8A
1 network cable
1 USB cable

How long does my machine warranty last?

-These items come with 12 months guarantee and have free lifetime techinical support.

How do I return a package?

-Machine components are covered by our limited 1-year warranty. If any of these items are defective during the warranty period, you can exchange it for an operational one at no extra cost.


Yan Yan

Mobile/What'sapp: +86-18680091963

Skype: ejointech.v |Wechat: 598794489