Is the device suitable for heavy-duty VoIP calls?

Yes, it is designed for heavy-duty VoIP call termination and origination with state-of-the-art voice compression.

What are the power supply requirements?

It accepts AC100~240V 50/60HZ and DC12V/2A power supply.

Does it support SMS and USSD functions?

Yes, it supports SMS sending, batch SMS, receiving, and USSD balance inquiry.

32 Channels VoIP GSM Gateway for SIP Trunking with 2 or 4G

Name: 32 Channels VoIP GSM Gateway for SIP Trunking with 2 or 4G
Brand: Shenzhen Etross Telecom Co., Ltd.
SKU: 2138647842

Guangdong, ChinaShenzhen Etross Telecom Co., Ltd.

US$1,700.00-2,050.00

1 Piece

Sample price:US$2050.00/piece.Request sample

Product profile

Customization

Available

Type

8 SIM Voice FWT

Protocol

Ipv4, TCP, UDP, Pppoe, DHCP, DNS, Nat, HTTP, FTP,

Model NO.

ets-32X8

Number of Channels

8 Channels GSM VoIP Gateway GoIP Gateway

Color

Blue

Product Name

32 Channels GSM VoIP Gateway GoIP Gateway

Network

GSM

SIM Card Slot

256

API

Support

Bulk SMS/Voice

Support

SIM Card Rotation

Support

IMEI Change

Support

Dtmf & Tts & Ivr

Support

Firmware Update

HTTP/TFTP

Weight

5kg

Transport Package

1PCS/Carton

Specification

L41 X W29 X H12(cm)

Trademark

Etross or OEM

Origin

Shenzhen, China

HS Code

8517629300

Production Capacity

1000PCS/Month

Key features

High Capacity SIM Support: Supports up to 32 concurrent calls with 256 SIM cards across 32 ports.

Advanced SIM Rotation: Features Multi-SIM rotation, BTS rotation, and human behavior functions to prevent SIM blocking.

Anti-Block Encryption: Includes proxy server encryption for VOS to protect against IP port blocking.

Flexible Network Options: Built-in WiFi router and optional 4G module for versatile connectivity.

Comprehensive Protocol Support: Fully supports SIP V2.0, IPv4, TCP, UDP, and various network protocols.

IMEI Management: Supports auto IMEI change, generation, and modification for enhanced flexibility.

Smart QoS Optimization: Utilizes SBO and Smart QoS to maintain high voice quality on varying internet speeds.

Customizable IVR: Offers customized IVR voice prompts and call routing capabilities.

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: ≤6.06h

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.