Is customization available for this gateway?

Yes, ODM service is available, and customization can be done from samples.

What are the minimum order requirements?

The minimum order quantity is 1 piece, making it suitable for testing or small deployments.

How long is the lead time for orders?

The average lead time is within 15 working days for both peak and off-peak seasons.

128 Sims 4G VoIP Gateway for Call Centers

Name: 128 Sims 4G VoIP Gateway for Call Centers
Brand: Shenzhen Etross Telecom Co., Ltd.
SKU: 2273791565

Guangdong, ChinaShenzhen Etross Telecom Co., Ltd.

US$1,150.00

1-4 Pieces

US$1,100.00

5-9 Pieces

US$1,050.00

10+ Pieces

Sample price:US$1150.00/piece.Request sample

Product profile

Customization

Available

Model Name

VoIP Gateway

Network

4G / GSM Support

Model NO.

4G VOIP Gateway 16 ports 128 sims

Port Number

SIM Card Slots

128

IMEI Change

Support

API

Support

Firmware Update

HTTP/TFTP

Ussd

Support

Human Behaviour

Support

Calling Type

Terminate/Originate Calls

Switch Bandwidth Optimization(Sbo)

Support

Dtmf & Tts & Ivr

Support

Warranty

1 Year

Transport Package

Carton Box

Specification

4G VOIP Gateway 16 ports 128 sims

Trademark

Etross / OEM Brand

Origin

Shenzhen, China

HS Code

8517629300

Production Capacity

50000000 PCS /Year

Key features

High Capacity SIM Support: Supports up to 128 SIM cards with 16 ports or 256 SIMs with 32 ports for large-scale call centers.

4G and GSM Dual Mode: Compatible with 4G, GSM, 3G, and CDMA networks with quad-band support for global connectivity.

Advanced SIM Rotation: Automatically rotates SIM cards based on call duration, idle time, or failure rates to prevent blocking.

Human Behavior Function: Intelligently manages SIM usage based on talk time, call counters, and failure patterns.

Switch Bandwidth Optimization: Features SBO technology to optimize bandwidth usage and improve call quality efficiency.

IMEI Modification Support: Allows IMEI change, auto-generation, and modification to bypass carrier restrictions.

Comprehensive SMS & USSD: Supports sending, receiving, batch SMS, and USSD balance inquiries for active management.

Flexible Network Integration: Built-in WiFi router and optional 4G module for direct modem connection or mobile call termination.

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: ≤6.20h

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.