VX 900 Multi-Service Voice Switch


  • Maximum IP-IP Calls: 1000
  • Calls Per Second: 20
  • Maximum E1/T1 Channels: 120
  • Maximum Analogue Channels: 8
  • H323/SIP Interworking: H323/SIP Interworking
  • TLS/SRTP Support: TLS/SRTP Support

The Sonus VX 900 Voice Exchange™ is the industry's first fully integrated multi-service voice switch with Any-to-Any gateway functionality, creating a next-generation solution for enterprise VoIP enablement.

  • Integrated, multi-function voice switch
  • Standalone remote survivability
  • Extensive call system interoperability
  • True telecom traffic management
  • Advanced call security
  • Expandable platform with optional software modules
  • Provides intelligent, flexible, lower cost VoIP and FMC enablement

As a multi-function voice switch, the VX 900 can be deployed in distributed networks to reduce and consolidate PBX infrastructure. The VX 900 extends advanced call system features from centralized data centers to remote locations. With its remote survivability features, the Sonus VX 900 provides continuous, local call service and intelligent trunk routing in the event of network connectivity failures.


The VX 900 Universal Voice Exchange™ contains an integrated voice routing engine, session border controller, media gateway and protocol converter with support for T1/E1/ISDN and analog voice interfaces, full SIP and H.323 compliance, and industry leading bandwidth efficiency capabilities. This multi-function integration delivers powerful, low cost VoIP enablement and call system infrastructure convergence in one intelligent, manageable solution.


With advanced network control and security features including SRTP, VLAN support and advanced call manipulation, the Sonus VX 900 provides a level of intelligence and capability that extends well beyond the typical, single-purpose session border controller. Unlike many other products in the market, the Sonus VX 900 only utilizes standard protocols to provide vendor independent remote survivability.