PSX Breakout Gateway Control Function (BGCF) Routing Server

The Sonus Networks PSX™ is a powerful and feature-rich IMS element that provides service selection and routing for IP-voice and multimedia services across the Sonus IMS architecture. Proven in telecommunications provider networks worldwide, the PSX has the industry's broadest, most flexible set of routing features, seamless scalability and reliability.

The PSX fills the role of the IMS-defined Breakout Gateway Control Function (BGCF), which is responsible for routing calls from the IMS network to other networks (e.g., between IP-voice and TDM networks).

The PSX supports routing for a wide range of applications, including:

• Long distance/international
• Tandem switching
• Business PBX access
• Residential/Centrex access

• IP-voice termination (e.g., H.323, SIP)
• Gateway MSC
• Direct Voice over BroadBand (e.g., Cable, DSL)
• Direct voice or wireless (e.g., Wi-Fi, WiMAX)
• Voice VPN
• Value Added Enhanced Services
• Internet Call Diversion, and more

The PSX also has a broad feature spectrum:

• General functions: standard/custom/private dialing plans, wholesale service support, emergency calls, digit/parameter manipulation, calling/dialing restrictions and service area determination
• Standard North American functions: N00, N11, casual dialing, toll free and premium (900), LNP
• International functions: digit normalization, overlap digit dialing, user-defined call types, CPC screening and mapping, and signaling interworking

PSX advantages:

• Sophisticated, high-performance routing
• Rich feature set and flexibility
• Rapid service roll-out
• Seamless, carrier-class scalability

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