SETU VGB is a multi-port fixed VOIP to ISDN BRI Gateway offering eight VOIP channels and two 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 realize an early return on the investment. Flexible and intelligent call routing options further ensure 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 while protecting their existing investment. Corporates with branch offices on multiple locations can avail benefits of VOIP network for 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 PBXs

ISDN PRI Gateway for IP-PBX

ISDN-BRI Gateway for IP-PBX

  • ISDN BRI Trunking for IP-PBX
  • Deployable in all SIP based VOIP Networks
  • Reduced Call Costs for ISDN BRI Calls

Peer-to-Peer Calling

Peer-to-Peer Calling

  • Place VOIP Calls without Involving SIP Proxy Server
  • No Need of Static IP as Peer-to-peer Calls can be established with Dynamic Public IP Address.
  • Dial by Extension Numbers between Distant Locations

DDI Routing over IP

DDI Routing over IP

  • Extends ISDN DDI Service over IP from One Location to another
  • Receive DDI Calls Directly on Remote Branch Extensions
  • Route Call back over ISDN Trunk – either from Local or Remote Branch


  • Up to Eight Simultaneous VOIP Calls
  • Two ISDN BRI Ports with Programmable TE/NT Modes
  • Deployable in all SIP based VOIP Networks
  • 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 a List of Denied Numbers
  • Direct Number Dialing on the Desired Network with Automatic Number Translation
  • Call Details Records of 2,000 Calls
  • PIN Authentication to Prevent Unauthorized Usage
  • Caller ID Presentation and Restriction
  • Emergency Number Dialing
  • Web based Configuration and Management


SETU VGB802 Gateway with Eight VOIP Channels and Two ISDN BRI Ports
SETU VGB842 Gateway with Eight VOIP Channels, Four GSM SIMs and Two ISDN BRI Ports
SETU VGB8423G Gateway with Eight VOIP Channels, Four 3G SIMs and Two ISDN BRI Ports

VoIP Port:
Protocol SIPv2, SDP, RTP (RFC 2833)
Connector Ethernet (RJ45)
SIP Accounts Four
Echo Cancellation G.168 with up to 128 ms 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 (Typical) 10W (Typical)

Mechanical and Environment:
Dimension (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 0° C to +45° C (34° F to +113° F)