Guangdong, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001, ISO 9000
Average Lead Time:
Peak season lead time: within 15 workday
Off season lead time: within 15 workday
OEM/ODM Service
Sample Available
Russian / Portuguese / Spanish Speaker

4 Channel Gsm Voip Gateway Gsm Gateway, Gsm Gateway, 4 Channel Gsm Gateway manufacturer / supplier in China, offering 4 Channels GSM Gateway with 4 SIM Card, DBL SIM Bank32 Remote Controller SIM Server, Remote 32 SIM Cards SIM Bank SMB32 and so on.

Gold Member Since 2010
Audited Supplier

4 Channels GSM Gateway with 4 SIM Card

Get Latest Price
Min. Order: 1 Piece
Production Capacity: 5000PCS/Month
Transport Package: 36(L)Cm*21(W)Cm*7(H)Cm
Payment Terms: T/T, Paypal, Money Gram, Western Union
Type: Gateway
Packing Box Dimension: 35.5*21.5*7 Cm
G. W: 0.86kg
Carton Dimension: 43.5*37.5*34.5cm 10unit/Carton
G. W. C: 9.5kg
Power: 12 Vdc 2A (AC/DC Adapter Included)

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Basic Info

Model NO.: GoIP-4
Warranty: One Year
Trademark: DBL
Specification: 26(L)Cm*16(W)Cm*3(H)Cm
Origin: China
HS Code: 8517709000

Product Description

4 Channels GSM Gateway with 4 SIM Card

4 Channels GSM Gateway with 4 SIM Card
4 Channels GSM Gateway with 4 SIM Card
Product Overview

The 16 ports GSM Gateway (GoIP16) provides the extension of GoIP1 and supports up to 16 GSM channels.  Each GSM channel can be programmed individually to establish the connectivity with IP-PBX, or can be bundled as a single trunk in connection with IP-PBX.  It is ideal for VoIP to wireless services where a fixed telephone line (PSTN) is not available or for cellphone roaming via the a VoIP network. The GoIP16 brings mobility, scalability and significant savings on long distance charges.


Key features

Provide 16 cellular channels for IP-PBX

Support open standard SIP Protocols (IETF SIP V2)

Support SIP proxy mode

Multiple GoIP16 grouping mode

Two 10/100 Ethernet ports for the LAN and an additional device

Guad band GSM module: support GSM 850MHz, 900 MHz, 1800 MHz, 1900MHz

Speech quality ensured by QoS at LAN, IP layers and comprehensive jitter buffer

VLAN and QoS support

NAT Transversal

Voice prompts, HTTP Web

Highly stable embedded Linux operating system in high performance ARM 9 Processor  


Enhanced Features

LEDs for Power, Ready, Status, WAN, PC, GSM

Call forward from GSM to VoIP and VoIP to GSM

Dial in mode or dial out mode only

Dial Plan

Password protection for both GSM dial in or dial out

Retransmit GSM Caller ID to VoIP terminal

Dynamic selection of codecs

Advanced jitter buffer

Automatic traversal of NAT and firewall

VLAN / Qos

Echo cancellation for Speakerphone

Comfort noise generation (CNG)

Voice activity detection (VAD)

Auto provisioning (requires auto provisioning server)

Firmware upgrade from GUI


Supported Standards

ITU: H.323 V4, H.225, H.235, H.245, H.450


RFC 2327 - SDP

RFC 2833 - RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals

RFC 2976 - SIP INFO Method

RFC 3261 - SIP

RFC 3264 - Offer/Answer model with SDP

RFC 3515 - SIP REFER Method

RFC 3842 - A Message Summary and Message Waiting Indicator

RFC 3489 (STUN) - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)

RFC 3892 - SIP Referred-By Mechanism

Proprietary Firewall-Pass-Through Technology

Codec: G.711 (A/µ law), G.729A/B, G.723.1

DTMF: RFC 2833, In-band DTMF, SIP INFO

Web-based Management

PPP over Ethernet (PPPoE)

PPP Authentication Protocol (PAP)

Internet Control Message Protocol (ICMP)

TFTP Client

Hyper Text Transfer Protocol (HTTP)

Dynamic Host Configuration Protocol (DHCP)

Domain Name System (DNS)

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