Specifications

Chapter 6 Configuring VoIP
Configure Dial Peers
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Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Figure 6-3 Dial Peer Call Legs, from the Perspective of the Source
Catalyst 4224
Figure 6-4 Dial Peer Call Legs, from the Perspective of the Destination
Catalyst 4224
There are two types of dial peers with each voice implementation:
• POTS (plain old telephone service, or basic telephone service)—The dial
peer associates a physical voice port with a local telephone device. The key
commands you need to configure are the destination-pattern and port
commands. The destination-pattern command defines the telephone number
associated with the POTS dial peer. The port command associates the POTS
dial peer with a specific logical dial interface, normally the voice port
connecting your router to the local POTS network.
• Vo I P—The dial peer associates a telephone number with an IP address. The
key commands you need to configure are the destination-pattern and
session target commands. The destination-pattern command defines the
telephone number associated with the VoIP dial peer. The session target
command specifies a destination IP address for the VoIP dial peer. In
58508
IP cloud
Destination
Source
Call leg for POTS
dial peer 1
Call leg for VoIP
dial peer 2
V V
58509
Destination
Source
IP cloud
Call leg for POTS
dial peer 4
Call leg for VoIP
dial peer 3
V V