Installation guide

DSP resources and licensing for IP telephony resources 28-4
Chapter 28: Understanding Wave IP Telephony
Wave Global Administrator Guide
The following diagram shows an IP phone call to a device on the PSTN:
The following diagram shows an IP phone call to a phone connected to the Wave Server:
The following diagram shows an IP phone call to another IP phone:
For more information about the DSPs, licenses, and configuration required for these scenarios,
see the following sections of this document:
• “DSP resources required in scenarios with IP phones” on page 28-6
• “IP phones” on page 28-8
DSP resources and licensing for IP telephony resources
Digital Signal Processor (DSP) resources applied to IP telephony give the Wave Server the
capability to route voice calls over packet-switched (data) networks. DSPs can convert voice
signals into data packets, and vice versa, using a codec.
PSTN
IP phone 101
555-5555
Wave ISM
DSP
packets
voice
signal
voice
signal
DSP
IP phone 101
102
Wave ISM
DSP
packets
voice
signal
DSP
IP phone 101
Wave ISM
packets
DSP
IP phone 103
DSP
packets
Release 2.0
September 2010