Inbound Versus Outbound Dial Peers - Cisco WS C4224V 8FXS - 200Mbps Ethernet Switch Software Configuration Manual

Chapter 6 Configuring VoIP

Inbound Versus Outbound Dial Peers

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addition, you can use VoIP dial peers to define characteristics such as IP
precedence, additional QoS parameters (when RSVP is configured), codec,
and VAD.
Dial peers are used for both inbound and outbound call legs. The terms inbound
and outbound are defined from the router perspective. An inbound call leg means
that an incoming call comes to the router. An outbound call leg means that an
outgoing call is placed from the router.
For inbound call legs, a dial peer might be associated with the calling number or
the voice-port number. Outbound call legs always have an associated dial peer.
The destination pattern is used to identify the outbound dial peer. The call is
associated with the outbound dial peer at setup time.
A POTS dial peer associates a telephone number with a particular voice port so
that incoming calls for that telephone number can be received and outgoing calls
can be placed. VoIP dial peers point to specific devices (by associating
destination telephone numbers with a specific IP address) so that incoming calls
can be received and outgoing calls can be placed. To establish VoIP connections,
you need both POTS and VoIP dial peers.
Establishing communication using VoIP is similar to configuring an IP static
route; you are establishing a specific voice connection between two defined
endpoints. As shown in
the originating telephone number or voice port) of the call. The VoIP dial peer
establishes the destination by associating the destination telephone number with
a specific IP address.
Catalyst 4224 Access Gateway Switch Software Configuration Guide
Figure 6-5, the POTS dial peer establishes the source (via
Configure Dial Peers
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