What is the warranty period for this product?

The product comes with a 12-month warranty.

What are the power supply requirements?

The device requires a power supply of 100-240VAC, 50-60 Hz.

Is OEM/ODM service available?

Yes, ODM service is available, and customization from samples is supported.

512 SIM SMS Gateway 16 Channels 4G LTE Bulk SMS Gateway

Name: 512 SIM SMS Gateway 16 Channels 4G LTE Bulk SMS Gateway
Brand: Shenzhen Etross Telecom Co., Ltd.
SKU: 901703355

Guangdong, ChinaShenzhen Etross Telecom Co., Ltd.

US$900.00-1,050.00

1 Piece

Sample price:US$1050.00/piece.Request sample

Product profile

Customization

Available

Type

4G SMS Gateway

Protocol

API

Model NO.

ets-16x8g

Support

SMS

Number of Channels

Wire or Not

Wireless

Color

Black

SIM Cards

128/512

Working Frequency

2g/3G/4G LTE

IMEI

Changeable

Touch Screen

7.0 Inch

Ussd

Support

SIM Card Rotation

Support

Transport Package

1 PCS/Box 5.4kgs

Trademark

ETROSS OR OEM

Origin

China

Production Capacity

20000PCS/Year

Key features

High Capacity SIM Support: Supports up to 512 SIM cards with 16 ports and 32 slots per port for rotation.

Multi-Protocol Connectivity: Features 4G LTE, 3G, GSM, GPRS, and API integration for versatile network access.

User-Friendly Web Interface: Built-in responsive WEB GUI allows quick configuration, task setup, and bulk SMS management.

Advanced SIM Management: Supports automatic SIM rotation, hot plug, lock, and IMEI modification via human behavior settings.

Versatile Messaging Functions: Enables bulk SMS, voice messages, DTMF, TTS, IVR, and two-factor authentication services.

Customizable IMEI: IMEI is changeable to meet specific network or regulatory requirements.

Robust Hardware Design: Fanless design with 100-240VAC power supply, ensuring stability and low noise operation.

Wide Application Scope: Ideal for marketing, cell broadcast, appointment reminders, and information services.

Company profile

Experienced TeamYears of Export ExperienceHigh Repeat Buyers ChoiceImporters and Exporters

Shenzhen Etross Telecom Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 17 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤6.63h

AI-Powered supplier vetting

SummaryShenzhen Etross Telecom Co., Ltd. is a Shenzhen-based limited company with 18 employees, focused on communication equipment and electronic products, including fixed wireless phones and terminals. It reports production capacity of up to 1,000 sets per day, 17 years of export experience, sample-based customization, and R&D activity including new products in the past year and ODM services. Some products are stated to have passed CE, FCC, and RoHS certification, but specific products and certificate records are not provided. Service-control documentation is weak: there are no written procedures or records for corrective actions or complaint handling, and overseas service infrastructure is absent. Financial-related records are identified for 2021–2023, but no substantive financial results are provided. No customer cases are presented.

Supplier typeThe supplier is Shenzhen Etross Telecom Co., Ltd., a combined, privately structured limited company located in Shenzhen, China, with 18 employees. Its licensed scope covers manufacturing communication equipment and electronic products, and it is not identified as part of a larger group.

CertificationsThe company states that some products have passed CE, FCC, and RoHS certification. However, the slices do not identify the certified products or provide certificate details, so the evidence supports stated certification coverage but not comprehensive verification.

After-Sales capabilityThe supplier has no written procedures or records for customer complaint handling or corrective and preventive actions. It also reports no overseas warehouse, showroom, agent, branch, or offline trade-show participation; therefore, documented and international after-sales support appears limited.

R&D capabilityThe supplier reports an R&D center with experienced engineers, new products developed during the past year, and ODM services. It does not provide an SDK and does not serve popular brands through OEM, so innovation capability is demonstrated but limited in the stated areas.

Production capacityThe supplier states production capacity of up to 1,000 sets per day, has listed production and testing equipment, and reports peak- and off-season lead times within 15 working days. Its 18-employee workforce and the absence of further capacity records limit the breadth of verification, but the stated operating capability is positive.

Customization capabilityThe supplier supports customization from samples and provides ODM services, directly indicating both sample-based customization and original design manufacturing capability. No broader customization scope or SDK support is stated.