VoIP Applications
VoIP Applications
Introduction | This section describes typical applications of VoIP and the benefits of implementing |
| 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. |
Fax
Intranet |
PB S200 | PB S200 | PBX |
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.
PSTN | Intranet | PSTN |
PB S200 | PB S200 |
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.
Intranet | Frame |
Relay |
PB S200 | PB S200 | PB S200 |
Figure 7. VoIP Applications and Voice Relay Support
8 | Voice Over IP |
