Chapter 14. DSP Resources

This chapter covers the use of digital signal processors (DSP) in Cisco voice gateways. Voice gateways use DSPs to terminate voice calls from time-division multiplexing (TDM) systems and convert those calls to Voice over IP (VoIP). DSPs can also provide transcoding and conference bridge resources to a Cisco CallManager.

This chapter helps you to do the following:

• Understand the capabilities of DSPs

• Determine the number of DSPs required to support your requirements

• Configure a gateway to provide conferencing resources for CallManager

• Configure a gateway to provide transcoding resources for CallManager and Cisco CallManager Express (CME)

• Understand the methods available for supporting fax and modem traffic

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