The Most Flexible Carrier-Grade High Density VoIP Gateway
The Sangoma High Density VoIP Gateway is an on-premise solution to seamlessly interconnect next generation VoIP and the legacy PSTN networks, scalable up to 32 T1 or E1 lines (or 960 simultaneous calls) in a 1 U form factor. Supporting concurrent use of ISDN, CAS (R2), SIP, T.38 fax Sangoma’s high Density VoIP Gateway appliances are perfect for service providers migrating from legacy services to IP-centric architectures and large enterprises & call-centers to deliver high-volume SIP trunking. Integrated transcoding capabilities also guarantees interoperability with any PBX solution and increase ROI by compression VoIP traffic.
Why Do You Need a High Density VoIP Gateway?
Although the telecommunications industry is rapidly adopting the Internet Protocol to provide Voice-over-IP (VoIP) services, the legacy PSTN network (using T1/E1 telco lines) is still prevalent for world-wide communication. As such there is a growing need for equipment that can seamlessly bridge legacy PSTN and VoIP services, whilst offering a variety of protocol support.
NetBorder SS7 VoIP Gateway Whitepaper

Advanced Web GUI
Browser-based GUI use for configuration, control and monitoring of PRI (over T1 or E1) links and network connections and load. Easy to use dialplan routing for basic and advanced call routing configurations. System logs and reports are also available directly from the GUI.

Diagnostic Tools
Browser based dashboard featuring time based graphing, system and session error reporting and email notifications upon faults. Onboard PCAP training tool capturing signalling and media, eliminating the need for extra port mirrors or hubs. The Hardware Crash protection feature reboots the system on lockup or hardware fault.

Scalable and Flexible
NVG is future proof with field upgradable licensing for up to 32 T1 or E1 (960 simultaneous calls) in a 1 U platform and flexible with routing between any PRI, CAS (R2) and SIP interconnection using its advanced XML routing engine.

Simplified Licensing
All NSG appliances are field upgradable and licensing is per channel, which means all the features, including transcoding, are always included – No sticker shock. Predictable NSG capacity and cost in every use case.

Proven Interoperability with Global installations
NVG has been deployed globally, which can attest to its highly successful interoperability and integration with PRI and VoIP carriers. On-board transcoding capabilities ensure interoperability with any open-source or proprietary PBX. So you never have to worry about new deployments wherever they may be.

Enhanced Transcoding Media Capability
NVG has extensive support for various wireline, mobile and audio codecs which guarantees interoperability with service providers, enriched audio quality and improved ROI. NVG comes with support for AMR, AMR-WB (G.722), GSM, G729AB, G.723, G.726 and iLBC transcoding, all configurable on a per channel basis. Extensive support for T.38 protocol which is used for Fax-Over-IP comes standard.
NetBorder High Density VoIP Gateway Models
Sangoma’s NetBorder High Density VoIP Gateways offer concurrent use of ISDN, CAS (R2), SIP, T.38 fax protocols all in one package, reducing footprint and increasing.

8 E1/T1 VoIP Gateway
- 8 ports E1/T1 (or 240 simultaneous calls)
- Telco grade echo cancellation
- TDM protocol support: SS7, PRI, MFCR2
- VoIP protocols: SIP V2/RFC3261
- Transcoding support:
- G.711
- G.723.1
- G.726
- iLBC
- G.729AB
- GSM
- G.722
- AMR
- G.722.1
- Fully featured webgui for configuration, monitoring and diagnostics

16 or 32 E1/T1 VoIP Gateway
Use Cases
NetBorder Gateway Features
- DTMF detection and generation:
- RFC2833 tone relay
- In-band
- SIP info
- G.168-2002 with 128ms tail
- SIP V2 / RFC3261
- SCTP RFC 2960
- Primary Rate ISDN (PRI)
- E1: Euro-ISDN, CAS MFCF2
- T1: Q.931, NI2, 4ESS, 5ESS, DSM-100
- Configurable and extendable XML-based dial plan and routing rules
- Flexible 8 port appliance
- 8 E1/T1 ports, or 240 channels
- 16 port appliance
- 16 E1/T1 ports, or 480 channels
- 32 port appliance
- 32 E1/T1 ports, or 960 channels
- Dedicated Browser interface for capturing full RTP media and signaling information
- Onboard browser-based PCAP tracing, signalling and media – wireshark compatible
- Large onboard storage capacity for long term tracing
- G.711
- G.723.1
- G.726
- iLBC
- G.729AB
- GSM
- G.722
- AMR
- G.722.1
- Fax Support; T.38 Fax Relay
- Web GUI
- Command line interface
- Detailed logs with con gurable le size and autorotation
- SNMP
- Radius
- Call detail records in XML format
- Remote firmware upgrade
NetBorder Gateway Specifications
Interfaces
- 8 port appliance
- 8 E1/T1; One 8-port telephony interface (RJ45 ports)
- 16 port appliance
- 16 E1/T1; Either two 8-port telephony interface (RJ45
ports) or one 16-port telephony interface (16-port interface requires 68-pin SCSI type interface)
- 16 E1/T1; Either two 8-port telephony interface (RJ45
- 32 port appliance
- 32 E1/T1: Two 16-port telephony interfaces (16-port interface requires 68-pin SCSI type interface)
- 8 port appliance
- 5x LAN 10/100/1000 BaseT Ethernet ports
- IPV4, IPV6
- 1x IPMI remote management Interface
- 2x USB ports
- 1x console port
- 16/32 port appliance
- 7x LAN 10/100/1000 BaseT Ethernet ports
- IPV4, IPV6
- 1x IPMI remote management Interface
- 2x USB ports
- 1x console port
Hardware
- 1U: 430mm (W) x 305mm (D) x 45mm (H)
- 7.2kgs (16lbs)
- 60W universal AC power
- 1U: 430mm (W) x 470mm (D) x 45mm (H)
- 15kgs (33lbs)
- 250W universal AC power
- 1U: 430mm (W) x 470mm (D) x 45mm (H)
- 15kgs (33lbs)
- 250W universal AC power