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Home > Voip Gateway > YX GoIP 4G LTE 16 Ports 16 SIM Slot Voice GSM Bulk Communication VoIP Gateway for Call and SMS

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YX GoIP 4G LTE 16 Ports 16 SIM Slot Voice GSM Bulk Communication VoIP Gateway for Call and SMS

Name: YX GoIP 4G LTE 16 Ports 16 SIM Slot Voice GSM Bulk Communication VoIP Gateway for Call and SMS
Brand: YX SHOP
Price: 1330 USD
Availability: InStock
Rating: 5.0 (21 reviews)

GP Gateway is a multi-SIM gateway. It links mobile cellular network to VoIP systems via SIP. It supports voice calls and SMS, It works for call centers, supports VPN connection and common audio codecs to run stable voice communication.

● 16 independent ports, each control 1 SIMs – total 16 SIM slot
● 16 SIM cards work at the same time – Bulk SMS and Voice
● YX Platform software – easy to manage calls, SMS, and billing
● Supports USSD, IMEI Change, HTTP API, SMPP, VOLTE, etc
● Supports call forwarding, call waiting and auto answer
● Supports Global Use – Multiple Module Models

$1,330.00

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Please select the information you want X

PORTS:

GP 16-16 (SMS and Voice)
4G MODEL:

EC25 / EG91 (Region Specific Global Coverage)

EC20 (Supports IN, RUS, parts of EU & Asia)
Price Tier:

1 Unit Price (Tip: Qty 1 | Purchase One)

2+ Units Price (Tip: Min Qty 2 | No Shipment below 2)
Power Adapter:

EU

CN/AU

CN

US(1)

US(2)

UK
Package appearance:

Original casing

Power amplifier casing

switchboard casing

Quantity:

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Description
Product Details
Frequency band
Package

Brand Name	YXCALL
Number of Channels	16 channels 16 SIM slots
Frequency	GSM, CDMA, WCDMA, LTE (When purchasing 4G equipment,If unsure,please confirm the frequency band and module with the account manager!)
Module	EC25/EG91/EC20 (Please refer to the "Frequency Band" interface for specific information)
Function	SIP Voice / STK / AT Command / TCP/ IP / Data / SMS / VoLTE / IMEI / MMS / Email / GPRS / GPS / USSD
SIP Specification	SIP/2.0 RFC3261 Session Timer RFC4028 STUN, DTMF, RFC2833
SMS Specification	SMPP3.4, HTTP, API, EIMS
Network Protocols	DHCP, PPPoE, Static IP, VPN
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
Number of Ports	1 WAN 10/100Base-T Ethernet(RJ-45 connector) 1 Console(USB)
LED	1 Power and 4/8/16/32/64groups of card online and running status indicator
Power Supply	100-240VAC, 50 - 60 Hz IN, 12VDC 3A/5A/7.5A/8A Out
Operating System	Win all, Linux, android
Operating Environment	Operating temperature: 0 - 50ºC Operating humidity: 10 – 90%RH
Warranty	12 Months
Support	With instruction manual and technical support (Also has SMS services, please contact us)
Shipping method	Support DHL, UPS, FEDEX, EMS, 4PX Cainiao standard logistics and dedicated lines (some countries have dedicated lines logistics, Specific consultation with customer service) Tip: (1) Express delivery is faster than dedicated lines, but customers need to handle customs clearance and tax payment, and there will be logistics trajectory updates throughout the process. (2) Dedicated line logistics is slower, but includes customs clearance and tax payment, and is delivered directly to the home. The logistics trajectory updates will only be available after the package arrives at customs clearance and is handed over to the local logistics provider.
Payment method	Support payment methods such as USDT, PayPal, credit card, TT, etc (Pay with USDT and there are no additional transaction fees, so 3% discount on the product price is given) Please consult customer service for USDT address,Other payment methods can be redirected to the checkout page for online payment
Ordering Process	Payment for the product you need to order, we will arrange for stock testing after confirming the accuracy of the delivery information with you. We expect to arrange shipment within 2 days and provide you with package picture and logistics tracking number for tracking. Customer service will send message to remind you of tax payment and logistics delivery. If you need technical support after receiving the goods, please leave a message to our customer service personnel, and we will arrange for a technician to assist
Tip	Use power amplifier or switchboard as the appearance will make customs clearance easier and reduce tariffs
Customer service contact information	Whatsapp: +8615220722893 Emai: yx@yxinternet.com Telegram: @YXwendy Teams: yuexun@yx19999.net

Dual Function - Seamless VoIP Calls & Bulk SMS Sending
The YX 4G LTE 16 Slot GSM Gateway is a versatile communication tool, offering both VoIP calling and bulk SMS capabilities. Businesses can manage inbound and outbound calls while simultaneously sending bulk SMS notifications — all from one compact device.

16 Slots for High-Capacity Operations - Handle Large-Scale Traffic
Equipped with 16 GSM channels, this voip gsm gateway supports high-volume calling and messaging, making it perfect for call centers, telemarketing teams, and automated notification systems. With wide carrier compatibility, it ensures seamless integration into your existing network.

Advanced Protocol Support - Full SMPP, HTTP API & SIP Compatibility
This voip gateway supports industry-standard protocols including SMPP for SMS integration and SIP for voice calls, allowing flexible system integration with VoIP phones, CRM platforms, or business communication software. Developers can also leverage HTTP APIs for custom automation.

Stable 4G LTE Connectivity - Faster, More Reliable Performance
Powered by 4G LTE technology, the gateway ensures stable signal strength, faster call setup, and reliable SMS delivery, even in remote or high-traffic environments. This makes it both a powerful voip gsm gateway and a dependable gsm modem for sms.

Direct from Manufacturer - Cost-Effective with Full Support
As a leading manufacturer of VoIP solutions, GSM modems, and communication hardware, YX offers direct factory pricing with no middleman markup. Buyers enjoy competitive pricing and dedicated technical support for smooth deployment.

YX VOIP Gateway 16 port 16 sim goip device display picture

YX VOIP Gateway 16 port 16 sim goip device display picture

Product Overview

The the YX 4G LTE 16 Port 16 SIM GoIP Gateway (GP16-16) is a next-generation 4G LTE enterprise communication core, redefining bulk voice and SMS performance for mid-to-large businesses, cross-border call centers, and telecom operators. Unlike 2G gateways, it adopts industrial Quectel EC25/EG91 4G LTE Cat4 modules, delivering VoLTE HD voice, ultra-low call latency, and 4G-speed SMS transmission—solving 2G’s slow speed, poor voice quality, and coverage limitations.

Designed with 16 independent 4G ports + 16 dedicated SIM slots (1 SIM/port), the GP16-16 supports 16-way concurrent HD voice calls and 16-channel high-speed bulk SMS. It covers global 4G LTE bands, integrates standard SIP 2.0 and HTTP API, and features carrier-grade stability, making it the ultimate choice for 4G-era cross-border communication, OTP verification, and commercial SMS operations.

Key Advantage: Works in 2G/3G/4G hybrid regions and future-proofs against 2G network phase-out.

Core Key Features

1. 4G LTE Cat4 High-Speed Performance

4G LTE Cat4 (150Mbps DL/50Mbps UL), 5x faster than 2G
SMS throughput: ~19,200/hour (1,200/port), no lag in peak hours
Low-latency data transmission for real-time voice/SMS

2. VoLTE HD Voice & Ultra-Low Latency

Native VoLTE support: crystal-clear HD voice, no static/echo
Call latency <150ms (2G: 500+ms), smooth cross-border calls
Supports G729/G711/iLBC codecs for adaptive quality

3. Global 4G Band Compatibility

Quectel EC25/EG91 modules: Region Specific Global Coverage
Covers Europe and America/Asia/Africa/Latin America/Australia
EG25 model Avoids regional frequency restrictions, one device for global use

4. Industrial 4G Module Stability

Original Quectel EC25/EG91 modules, 24/7 uninterrupted operation
Strong anti-interference, stable 4G signal in weak coverage
Longer lifespan than generic 4G chips

5. Dual Protocol Integration (SIP + HTTP API)

SIP 2.0: compatible with softswitches/IP PBX for cross-border calls
HTTP API: GET/POST for CRM/ERP/OTP platform integration
SMPP optional for large-scale SMS aggregation

6. Smart 4G SIM Automation

4G-specific anti-block rules: call duration, SMS count, 4G signal loss
IMEI customization, USSD balance query, PIN/PUK management
Auto SIM switch for 4G signal fluctuations

7. Cloud Remote Management

ETMS cloud platform: monitor/control 4G gateway globally
Real-time 4G signal, call/SMS stats, SIM status
Firmware upgrade & config backup remotely

8. Intelligent LED Alarm System

4G signal strength indicator (green/yellow/red)
Real-time port/SIM status, fault alert
Quick troubleshooting without software

9. Compact Rack-Mount Design

19-inch rack-mountable (saves data center space)
DC 12V 5A stable power, low power consumption
0–50°C industrial temperature range

Step-by-Step Installation & Operation

1. Hardware Assembly

Insert 16 activated 4G SIM cards into dedicated slots.
Install 16 high-gain 4G LTE antennas for optimal signal.
Connect RJ45 Ethernet cable to WAN port (10/100Mbps).
Plug in DC 12V power adapter and power on.
Check LED

2. Web Login & 4G Network Setup

Set PC IP to 192.168.1.xxx (same subnet).
Visit http://192.168.1.10; default: root/root.
Navigate to Network → 4G Settings.
Select local 4G band.
Configure WAN: Static/DHCP/PPPoE.

3. VoLTE HD Voice Configuration

Go to Gateway → SIP Settings.
Enter softswitch IP/account/password.
Enable VoLTE and select HD codec.
Register status: Ready = connected.

4. Bulk SMS Setup

Navigate to SMS → Port Enable.
Activate 16 ports, set 4G SMS interval.
Configure HTTP API/SMPP for platform integration.

5. 4G SIM Automation

Open Automation → 4G Rules.
Enable anti-block: SMS count, call duration, signal loss.
Save and reboot.

6. Launch Bulk Voice/SMS

Voice: 16-way concurrent HD calls.
SMS: High-speed 4G bulk SMS delivery.

Ideal Application Scenarios

1. Cross-Border Call Centers

16-agent HD call centers, low-latency international calls, no echo/static.

2. High-Speed Bulk SMS Marketing

4G-speed promotional SMS, flash sales, event alerts for global audiences.

3. Enterprise OTP & Verification

Real-time 4G OTP, login/payment verification for fintech/e-commerce.

4. Telecom Operator Services

Small-scale carrier voice/SMS termination, SIM aggregation.

5. Logistics & IoT Alerts

4G real-time delivery updates, device fault notifications.

6. Global Brand Campaigns

Cross-region marketing SMS, multi-language voice broadcasts.

FAQ

Q1: What is GP 16-16?

A: GP 16-16 has 16 ports and 16 SIM card slots, which can simultaneously operate 16 SIM cards to send and receive SMS and make phone calls

Q2: What’s the advantage over 2G gateways?

A: Faster SMS, HD voice, lower latency, wider 4G coverage, future-proof.

Q3: Can it handle cross-border calls stably?

A: Yes, 4G bands + VoLTE ensure stable international calls.

Q4: Is remote management supported?

A: Yes, ETMS cloud for global monitoring/control.

Q5: Does it support OTP platforms?

A: Yes, HTTP API for seamless OTP integration.

Why Choose YX GP16-16?

4G High-Speed Edge: 5x faster than 2G, no peak lag.
VoLTE HD Voice: Crystal-clear cross-border calls.
Global 4G Coverage: One device for all regions.
Industrial Stability: Quectel modules, 24/7 operation.
Cloud Intelligence: Remote control & analytics.
Future-Proof: 2G/3G/4G compatible, avoids 2G phase-out.

Call to Action

Upgrade to 4G communication with the YX 4G LTE 16 Port 16 SIM GoIP Gateway (GP16-16)!

Free 4G band configuration
1-year warranty
Global shipping
Enterprise technical support

Contact our sales team for your custom quote!
Contact customer service for bulk orders, frequency band checks, or API integration support!
Whatsapp: +8615220722893
Emai: yx@yxinternet.com
Telegram: @YXwendy
Teams: yuexun@yx19999.net

↓ Platform admin panel page display
voip gateway panel Port Status voip gateway panel network setting voip gateway panel SMS setting voip gateway panel Codec setting
voip gateway panel SIP Setting

Detailed Description:
Carrier-Grade VoIP Gateway for High-Density Communication
● 16 Simultaneous Channels: Manage 16 parallel voice/SMS streams via 16 SIM slots, ideal for call centers, telecom hubs, or mass notification systems.
● Multi-Network Flexibility: Supports LTE, GSM, CDMA, and WCDMA networks (confirm 4G frequency bands with account manager).
● SIP RFC3261 Compliance: Seamless integration with IP-PBX systems, STUN support, DTMF (RFC2833), and advanced call routing (LCR, IVR, CDR).

Enterprise-Level Features & Security
● Crystal-Clear Voice Quality: Codecs include G729, G.711, iLBC + echo cancellation, VAD, and adaptive jitter buffer for flawless calls.
● SMPP 3.4 & API Integration: Send/receive SMS at scale alongside voice calls via HTTP, API, or EIMS protocols.
● Military-Grade Security: VPN, PPPoE, and static IP support with encrypted data transmission for secure operations.

Industrial-Grade Hardware & Scalability
● Dual Connectivity: 1x WAN port (RJ-45) + 1x USB console for hybrid network setups and remote management.
● Carrier-Class Uptime: Built for 24/7 operation (0-50°C temperature range) with LED status monitoring for all 16 channels.
● Global Compliance: Works with Windows, Linux, Android systems and 100-240VAC power input.

Future-Proof Telecom Infrastructure
● Advanced Telephony Features: Hotline calls, speed dial, white/blacklists, N-way conferencing, and mobile number portability.
● Free Software: Automate campaigns, track analytics, and manage multi-device clusters seamlessly.
● 12-Month Warranty: Backed by YXCALL’s technical support and detailed manuals.

↓ YX Gateway main page to set Gateway display, For other uses, please refer to the instruction manual

↓ VoIP and SMS gateway connection demonstration

↓ Unscrew the power amplifier casing

↓ Unscrew the switch casing

About Us

YX International is a professional supplier specializing in consumer electronics, smart devices, and lifestyle products. With years of experience in global trade and a strong supply chain network, we provide businesses and end-users with reliable products at factory-direct prices.

Our mission is to bridge quality manufacturing with global buyers, making cross-border sourcing easier, faster, and more transparent. From product selection to quality control, and from fast delivery to after-sales support, YX International ensures every order meets high expectations.

Why Choose Us

Extensive Product Range：From smart electronics to innovative gadgets, we cover a wide range of categories to meet various market demands.

Direct-from-Manufacturer Pricing：We work directly with reliable factories, ensuring competitive wholesale prices with no hidden costs.

Strict Quality Control：Every product goes through multi-level quality checks, from factory audits to pre-shipment inspections, guaranteeing what you receive matches your expectations.

Efficient Logistics Network：With global shipping partnerships, we offer fast and trackable delivery to over 100 countries, keeping your orders on time.

Dedicated Customer Service：Our professional team is ready to support you before, during, and after your purchase, ensuring your sourcing experience is smooth and hassle-free.

FAQ

1.Who are we?

YX International is a trusted supplier offering consumer electronics, smart devices, connecting global buyers directly with high-quality factories.

2.How can we guarantee quality?

Factory audits to verify production capabilities

Product sampling and testing

Pre-shipment quality checks to confirm product specifications

3.What can you buy from us?

We offer a wide range of products, including:

SMS Modem

SMS Dongle

Voip gateway

SMS gateway
eSIM Gateway
IP Phone
Modules/Accessories

Customized products for bulk orders

4.Why should you buy from us instead of other suppliers?

Direct factory pricing with no middleman markup

Comprehensive quality control from production to delivery

Flexible order solutions for both retail and wholesale

Fast global shipping and reliable logistics

Dedicated after-sales support to resolve any issues

5.What services can we provide?

Product sourcing and customization

OEM and private label support

Product quality inspections

Global shipping coordination

After-sales support and warranty services

1、Overview
VoIP GSM gateway (GoIP gateway) is a device that can reduce the cost of calling mobile networks from fixed telephone lines. It can route directly between IP, digital, analog, and mobile networks. GoIP gateways are increasingly being used by telephone operators to connect IP calls to mobile networks. In areas where fixed line services are unavailable or much more expensive than mobile costs, GoIP gateways are an irreplaceable alternative.

The following figure shows a basic topology of GP Gateway usage.

2、Product Brief
YX series GP Gateway is a multi-functional and high performance product, which is designed with advanced embedded technology. YX series is able to process traditional voice call service and internet data service. perfectly support G729a/b/e、G723.1、G.711 a/u law and iLBC codecs at the same time.
YX series GP Gateway please check the following table about the difference:

Model Number	Channel	Sim capacity in each channel	Total sim capacity	Frequency(optional)
YX GOIP 4-4	4	1	4	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 8-8	8	1	8	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 8-32	8	4	32	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 16-16	16	1	16	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 16-64	16	4	64	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 16-128	16	8	128	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 16-256	16	16	256	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 16-512	16	32	512	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 32-32	32	1	32	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 32-64	32	2(1 Big+1 Small)	64	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 32-128	32	4	128	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 32-256	32	8	256	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 32-512	32	16	512	GSM / CDMA / WCDMA / 4G(LTE)
YX GOIP 64-64	64	1	64	Currently unavailable, development in progress
YX GOIP 64-256	64	4	256
YX GOIP 64-512	64	8	512

3、Appearance

● 4/8/16/32 Antennas
● 1 USB Serial Port (Baudrate 115200)
● 1 Network Interface (RJ45)
● 1 Power Interface (DC 12V 3A/5A/7.5A/8A)
● 1 Power light
● 1 Reset Button
● 4/8/16/32/64/128/256/512 SIM card slots
● 4/8/16/32/64/128/256/512 LED lights

4、Special Features

● Support G729a/b/e,G723.1,G.711 A/U law, iLBC auto-selecting

● BO(Bandwidth Optimization)

● Proxy Encryption Solution for IP Block

● Support SIM Bank

● VPN(pptp)

● SIM Card Rotating

◆ SIM card check and switch rules:

◇ Accumulated Call Duration

◇ Accumulated Connected Calls

◇ Accumulated Calls

◇ Consecutive Failed Calls

◇ Consecutive No-Alert Calls

◇ Consecutive No-Answer Calls

◇ Consecutive No Carrier Calls

◇ Consecutive Short-Duration Calls

◇ Consecutive Fast-Alerting Calls Checking

◇ Consecutive Fast-Answer Calls CheckingGSM/CDMA/WCDMA/4G(LTE) VoIP/SMS Gateway

◇ Consecutive GSM Release Cause Checking

◇ Accumulated SMS Count Checking

◇ Accumulated Failed SMS Count Checking

◇ Consecutive Failed SMS Count Checking

● Station intelligent switching(By switching rules)

● ERMS(Easement Remote Management System)

● Port Inter-Calling

● Fake Ring back

● FAS shield

● Call waiting

● Call Duration Limitation for SIM Card/Single

● Dial Plan/Prefix Inward Translation/Intelligent Routing

● Web Browser: Firefox/Chrome /IE/Opera

5、Specification

Number of Channels	4 channels 4 SIM slots 8 channels 8/32 SIM slots 16 channels 16/64/128/256/512 SIM slots 32 channels 32/128/256/512 SIM slots
Frequency	GSM, CDMA, WCDMA, LTE(When purchasing 3G or 4G equipment, please confirm the frequency band and module with the account manager!)
SIP Specification	IP/2.0 RFC3261 Session Timer RFC4028 STUNS
SMS Specification	SMPP3.4
Network Protocols	DHCP/PPPoE/VPN(pptp) NTP Telnet/HTTP/FTP/TFTP Encryption:Security,VOS2000,RC4,XOP.Base64
Telephony Features	Hot-line Send SMS ,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
Number of Ports	1 WAN 10/100Base-T Ethernet(RJ-45 connector) 1 Console(USB)
LED	1 Power and 4/8/16/32/64groups of card online and running status indicator
Power Supply	100-240VAC, 50 - 60 Hz IN, 12VDC 3A/5A/7.5A/8A Out
Operating Environment	Operating temperature: 0 - 50ºC Operating humidity: 10 – 90%RH
Warranty	12 Months

6、Mobile Features

● SMS Send, Receive and Forward(GSM/SIP/HTTP)

● SMS Inbox

● AT Command , USSD

● SMS Format: PDU/TXT

● PIN Code Management

● CDMA Delay Answer

● GSM Polarity Reversal

● Carrier Selection

● Caller ID Hidden(need SIM Card support)

7、Maintenance and Management

● Multi-language Interface

● USB Serial COM

● Configuration Backup and Restore

● Support HTTP/TFTP Upgrade

● Call statistics: ASR,ACD,PDD

● WEB Remote Management System

● SMPP support

● HTTP Command

▼The following pictures are demo of the platform's interface setup and operation

8、FAQ

Q1. Does GOIP or MOIP support custom calling number/sender ID when making phone calls or sending text messages?

A：The device uses a SIM card, which naturally displays the SIM card number when making calls or sending text messages. This is determined by the SIM card itself and the SIM card operator, and generally does not support custom calling numbers/sender IDs. In VOIP and network SMS services, only the operator's routing (CLI and direct connection) may be supported!

Q2. Does GOIP or MOIP support detecting surrounding mobile phone information, listening to surrounding calls, tracking/tracing mobile phones/calls/SMS, IMSI Catcher and other detection functions?

A：This type of feature has no connection with our product and is not supported!

Q3. Does GOIP or MOIP support wifi or multi wifi functions to provide data internet access and other functions?

A：The functions related to wifi/data internet are not related to any of our devices and are not supported!

Q4. Does GOIP, MOIP, or SMS modem support functions such as MMS, picture SMS, voice SMS, video calls, etc?

A：SMS modems can support MMS (customers need to have their own software support, we do not provide MMS software), and the latest version of YX GOIP/MOIP can also support sending MMS. Other products do not support it

Q5.Does GOIP support the function of hiding the caller when making phone calls?

A：The device has a setting function to hide the caller, but it requires the SIM operator to support this function at the same time.

Q6. Does GOIP and modem have API?

A：The GOIP/MOIP of YX series has HTTP APIs for sending/receiving SMS and USSD, and supports customer developed software to call through HTTP; DBL's GOIP does not have an API that can be directly used, but if the client has their own server, after installing a GOIP SMS sending server software, they can use the SMS HTTP API; The modem does not have an API.

Q7. What devices can make voice group calls?

A：SMS modems do not support direct audio access and cannot play voice after calling out. GOIP can support it, but GOIP cannot automatically call out and requires the call center to provide functions for calling out and playing voice

Q8. Is there a device that supports receiving and forwarding SMS messages?

A：SMS modems can receive text messages, but they do not support forwarding. Additionally, the software we provide does not support checking which port received the messages

YX GOIP/MOIP can receive information and forward it to email/HTTP address/SIP server/other phone numbers or HTTP API directly from the device (Commonly used methods include email or HTTP API retrieval)

Q9. Can the device support international roaming? What should be noted?

A：1. The SIM card needs to be able to roam to the target country. 2. It is necessary to understand the frequency band of the target country, and the device needs to be matched with the frequency band of the target country (if there are too many frequency bands in the target country, it can also be determined which operator in the target country can provide roaming signals for the SIM card, and the device needs to match the frequency band of the operator that provides roaming signals)

Q10. What is the SMS sending speed for MOIP/GOIP?

A：GOIP/MOIP(2G/3G/4G): 720 per port per hour (the above standard testing environment may vary depending on the device environment)

Q11. Does SIMBank support connecting to devices other than GOIP and MOIP, do they have APIs, and can different brands of SIMBANK and GOIP be used?

A：SIMBank does not support connecting to devices other than GOIP and MOIP, there is no API, and different brands of SIMBANK and GOIP cannot be used

Q12. How can SIMBANK connect to GOIP/MOIP and card the device?

A：SIMBANK generally requires the use of the software SIM Server installed on the server to manage, connect, and allocate cards, in order to achieve remote card access. If there is no server, one needs to be rented, and the system requires CentOS 5. X or 6. X

Q13. What are the ways to send/receive SMS for YX series GOIP/MOIP and DBL?
A: (1) Login to the device page to send/receive directly;
(2) Directly connect to the SMS platform (only support EIMS/IMFS) to send/receive;
(3) use HTTP API to send/receive directly (customers may need their own software/platform support);
(4) if the customer has a public IP, the customer can set the public IP to GOIP, and then send SMS after docking with SMPP SMS platform;
DBL's no API can only use the page to send or use the server supporting SMS sending software to send.

Q14. Can GOIP or MOIP use the data traffic inside the SIM card to give users access to the Internet?
A: No, we don't have this kind of equipment.

Q15. Difference between YX GOIP and DBL GOIP in terms of sending and receiving SMS.
A: DBL can only send and receive SMS in the device (SIM reason, the maximum number of messages received is 50), or the customer has its own server to install information management software (can send and receive, unlimited number of SMS).
YX can send and receive SMS in the device (SIM reasons to receive information up to 50) or you can use our free ETMS management software (can be received, but sent to need to use another EIMS2, unlimited number of SMS), if the customer has the ability, the device also has a HTTP API can be accessed to their own development of the program (support for sending and receiving)

Q16. Can GOIP/modem be used in XX countries (or a certain operator)?
A: The product has nothing to do with the use in which country or which operator, as long as the frequency band of the device can match the local (or the operator to be used), it can be used!

Because the 4G frequency band is different in different countries or regions, when placing an order, please indicate the country in which the product is used. If there is no indication, we will select the corresponding frequency band model based on the country where the shipping address is located.

Product Feature
Name	4G LTE Wireless Modem
communication interface	USB
Chipset	Quectel EC25 / EG91 / EG25 / EC20
Function	SIP Voice / STK / AT Command / TCP/IP / Data / SMS / IMEI / MMS / Email / GPRS / GPS / USSD
Frequency	EC25-EUX / EG91-EX :(Asia, Europe,Africa, the Middle East,Southeast Asia, Vietnam, Myanmar, Laos, Cambodia, Malaysia, Singapore, Russia) LTE FDD: B1,B3,B5,B7,B8,B20,B28 LTE TDD: B38,B40,B41 WCDMA: B1,B5,B8 (900/2100MHz) GSM: B3,B8 (900/1800MHz) EC25-AFX / EG91-NAX :(United States and Canada) LTE FDD: B2/B4/B5/B12/B13/B14/B66/B71 WCDMA:B2/B4/B5 (1900,1700,850MHz) EC25-AUX / EG91-AUX :(Australia, New Zealand and Latin America, Mexico, Peru, Colombia, Brazil, Chile, Argentina, Dominican Federation, Venezuela, Honduras, Guatemala, Nicaragua, Costa Rica, Panama, Cuba, Guyana, Bolivia, Paraguay, Uruguay, etc) LTE FDD: B1/B2/B3/B4/B5/B7/B8/B28/B66 LTE TDD: B40 WCDMA: B1/B2/B4/B5/B8 (850,900,1700,1900,2100MHz) GSM:B2/B3/B5/B8 (850,900,1800,1900MHz) EC25-J :(Japan) LTE FDD: B1/B3/B8/B18/B19/B26 LTE TDD: B41 WCDMA: B1/B6/B8/B19 EG25-G :(Global Full Frequency） LTE-FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28 LTE-TDD: B38/B39/B40/B41 WCDMA: B1/B2/B4/B5/B6/B8/B19 GSM: B2/B3/B5/B8 EC20 :(China, India) LTE FDD: B1/B3/B5/B8 LTE TDD: B34/B38/B39/B40/B41 WCDMA: B1/B5/B8 (900,2100MHz) TD-SCDMA: B34,B39 (900,2100MHz) EVDO CDMA: BC0 (800MHz) GSM: B3,B8: (900,1800MHz)
Operating System	Win all, Linux, android
Working voltage	AC 100-240V / DC 12V
Warranty	One Year