The Digital Signal Processor (DSP) Resource Calculator is a web-based tool that helps calculate the number of DSPs required on the system. It also determines the number of calls that can be handled simultaneously, taking into consideration each of the Coder-Decoder (codec) standards. This tool requires information such as the platform type, Cisco IOS release number and Interface modules to calculate the DSPs. This document provides information on how to calculate DSPs for TDM Voice service and Video conferencing service.
Why do you need DSP?
No. of DSPs required = Voice Termination + Audio IP Services + Video IP services
1. Voice Termination
TDM Trunk Termination
H.320 TDM Video
2. Audio IP Services
Acoustic shock prevention
3. Video IP Services
DSP Media Resources
Audio Conferencing: Mixing RTP streams for multi-party conference bridges
Audio Transcoding and Transrating: Support multiple codecs on the same call (e.g., G.711-G.729A)
Video Conferencing: Mixing video streams for multi-party conferences
Cisco Unified Border Element: Media Enhancement, Acoustic Shock Prevention, Noise Reduction, Video Quality Metrics, Transcoding and Transrating
Voice Termination: Terminating TDM trunks and encoding, compressing and packetizing the voice.