3com S200 Manual De Usuario
8
Voice Over IP
VoIP Applications
VoIP Applications
Introduction
This section describes typical applications of VoIP and the benefits of implementing
voice over an IP network.
voice over an IP network.
Applications
VoIP can be used to provide cost effective, long distance phone services over the IP
network. Figure 5 illustrates a network using VoIP to support fax and voice calls
between two branch offices in different locations.
network. Figure 5 illustrates a network using VoIP to support fax and voice calls
between two branch offices in different locations.
Figure 5. VoIP Applications for Small Branch Offices
In Figure 6, the PathBuilder S24x, 26x, and 27x switches act as gateways to route
calls over the IP network. With this implementation, the caller only needs to call a
local number to start a long distance conversation.
calls over the IP network. With this implementation, the caller only needs to call a
local number to start a long distance conversation.
Figure 6. VoIP Applications for Long Distance Telephone Service
Figure 7 illustrates a network supporting voice within an Intranet and voice over a
public or private frame relay network using 3Com’s Voice Relay.
public or private frame relay network using 3Com’s Voice Relay.
Figure 7. VoIP Applications and Voice Relay Support
PBX
Intranet
Fax
PB S200
PB S200
Intranet
PSTN
PSTN
PB
S200 PB
S200
Intranet
Frame
Relay
Relay
PB S200
PB S200
PB S200