In this section:
Enterprises are moving beyond voice-centric nature of IP PBX to real-time IP communications such as presence, instant messaging, web/voice/video conferencing, voicemail and visual voicemail, real-time business applications and telepresence in an effort to maximize their IP network. Enterprises are also in the process of moving away from VoIP islands to peer-to-peer VoIP networks to facilitate business-to-business collaboration and/or federation.
As enterprises move away from TDM and deploy real-time IP communications services and interactive business applications such IP contact centers, referred to as Unified Communications (UC), they face significant challenges in security, interoperability, QoS and regulatory compliance. The
Figure 1 shows how SBC platforms enable enterprises to control critical IP network borders to their centers that host VoIP/UC infrastructure.
Figure 1: SBC Controlling Enterprise Network Borders
The example graphics depicits SBC 5000, but all the platforms are supported.
Where the
- SIP trunk connection between Service Provider and enterprise. This connection links the enterprise to the PSTN network.
- Connections between the enterprise headquarter and remote branch offices via private WAN such as MPLS.
- Connections between remote users and mobile employees.
- Connection to service providers who offer hosted IP communication services or VoIP enabled business applications.
Enterprises will deploy
- Security
- Interworking
- Demarcation
- Session Management
Enterprises use the same
To learn about Service Provider deployment scenarios, see Service Provider Deployment Scenarios.
To learn about H.323 deployment scenarios, see H.323 Deployment Scenarios.