Fixed VoIP to ISDN BRI Gateway



SETU VGB is a multi-port fixed VoIP to ISDN BRI gateway offering 8 VoIP channels and 2 ISDN BRI ports. It connects ISDN PBX to IP network for cost-effective and flexible communication. For an IP-PBX, SETU VGB provides ISDN BRI trunking.

The gateway enables inbound and outbound calls over VoIP and ISDN BRI networks. Seamless connectivity with existing communication setup, enterprise-grade features and cost-effective communication over IP network help businesses to realize an early return on the investment. Flexible and intelligent call routing options further ensures that communication takes place using the most cost-effective network.

The gateway serves as an ideal solution for small businesses and call centers to control operational costs. Service Providers and system integrators addressing business customers can offer a strategic migration to VoIP with protecting their existing investment. Corporates with multi-locational branch offices can avail benefits of VoIP network for making cost-effective inter-office communication.


VoIP Gateway for Traditional ISDN PBX

VoIP Gateway for Traditional ISDN PBX

  • VoIP Access to ISDN BRI Systems
  •  Maintain existing PBX infrastructure and dialing habits
  •  Programmable TE/NT modes for easy integration
  •  Compatible with all ISDN PBX

ISDN BRI gateway for IP-PBX

  • ISDN BRI trunking for IP-PBX
  • Deployable in all SIP based VoIP networks
  • Reduced call cost for making ISDN BRI calls
ISDN BRI gateway for IP-PBX

Peer-to-Peer Calling

Peer-to-Peer Calling

  • Place VoIP calls without involving SIP proxy server
  • No need of Static IP, Peer-to-Peer Calls can be established with dynamic Public IP address
  • Dial by extension numbers between distant locations

DDI Routing over IP

  • Extends ISDN DDI service over IP from one location to another
  • Receive DDI calls directly on remote branch extensions
  • Route callback over ISDN trunk–either from local or remote branch
DDI Routing over IP

Key Features

  • Up to 8 Simultaneous VoIP Calls
  • 2 ISDN BRI Ports with programmable TE/NT modes
  • Deployable in all SIP based VoIP network
  • Simultaneous peer-to-peer and proxy calling
  • Multiple SIP proxy registrations
  • ISDN Network clock synchronization for error-free communication
  • Cost-effective calling with intelligent least cost routing
  • Fax over IP (T.38 and Pass-Through)
  • VLAN tagging for advanced networking
  • Restrict unwanted calls with list of denied numbers
  • Direct number dialing on the desired network with automatic number translation
  • Call details  records of 2000 calls
  • PIN authentication to prevent unauthorized usage
  • Caller ID presentation and restriction
  • Emergency number dialing
  • Web-based configuration and management



SETU VGB802 Gateway with 8 VoIP Channels and 2 ISDN BRI Ports
SETU VGB842 Gateway with 8 VoIP Channels, 4 GSM SIMs and 2 ISDN BRI Ports
SETU VGB8423G Gateway with 8 VoIP Channels, 4 3G SIMs and 2 ISDN BRI Ports

VoIP Port:

Protocol SIP v2, SDP, RTP (RFC 2833)
Connector Ethernet (RJ 45)
SIP Accounts 4
Echo Cancellation G.168with up to 128ms Tail length
Voice Codecs G.711 (A-law, µ-Law), G.723, G.729AB, GSM-FR, GSM-EFR and iLBC Voice Codec


Channels Dual BRI Ports
Connector RJ45
Operational Mode Software Configurable NT/TE Modes
Interface S/T Interface, Point to Point and Point to Multipoint
Switch Variant ETSI- Euro ISDN BRI NET3

Power Supply:

Input External Power Adaptor
Input: 90-265VAC, 47-63Hz
Output: 12VDC@2A
Power Consumption 10W (Typical)

Mechanical and Environment:

Dimensions (WxHxD) 23.0x 5.5 x 16.3 cm (9.1”x 2.2”x 6.4”)
Mounting Options Wall Mount and Table Top
Operating Temperature -10° C to +50° C (14° F to +122° F)




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