User`s guide

VoiceFinder AP200 VoIP Residential Gateway (RGW) User’s Guide Version 1.1

AddPac Technology Co.,Ltd. -

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5.1.3. Dial Peer

The key to understanding our voice implementation is to understand the use of

dial peers. Dial peers describe the entities to and/or from which a call is

established. All of the voice technologies use dial peers to define the

characteristics associated with a call leg. A call leg is a discrete segment of a

call connection that lies between two points in the connection, as shown in

Figure 5-1

and Figure 5-2. Four call legs comprise an end-to-end call, two from

the perspective of the source Gateway as shown in Figure 5-1

, and two from

the perspective of the destination Gateway, as shown in Figure 5-2

. You use

dial peers to Apply specific attributes to call legs and to identify call origin and

destination. Attributes Applied to a call leg include Quality of Service (QoS),

compression/decompression (CODEC), Voice Activation Detection (VAD), and

fax rate.

Figure 5-1: Dial Peer Call Legs from the Perspective of the Source Gateway

Figure 5-2: Dial Peer Call Legs from the Perspective of the Destination Gateway

IP Cloud

Source

Destination

Dial Peer1

Dial Peer3

Dial Peer2 Dial Peer4

Call leg for POTS Dial Peer1 Call leg for VoIP Dial Peer2