The Cisco AS5400XM Universal Gateway doubles the performance of the Cisco AS5400HPX and delivers significant memory enhancements to offer high performance and high reliability in a compact, modular design..It easily supports public switched telephone network signaling, gateway signaling, voice codec, fax, VoiceXML, RADIUS, Tool Command Language, and interactive voice response.

Features of the AS5400XM make it ideal for many network deployment architectures:

• High density to handle increased traffic
• Low power consumption to reduce cost
• High-density packet voice/fax digital signal processor (DSP) to provide greater price/performance, higher density, and expanded codec and feature support for intelligent packet voice services
• Universal port DSP feature cards to support remote access services in combination with voice and fax applications (Excerpt from Cisco.com)