查看“SIP应用场景”的源代码

'''SBC scenario overview'''


'''SBC&nbsp;Use Case Overview'''

* Connect remote workers securely to a VoIP infrastructure
* Connect Branch Offices together securely without needing&nbsp;VPNs
* Smoothly integrate legacy VoIP systems into a unified infrastructure
* Evolve VoIP infrastructures while preserving investment and avoiding forklift upgrades
* Integrate VoIP, disaster recovery solutions
* Ensure compliance in VoIP networks
* Ensure&nbsp;PSTNequivalency is achieved quickly and smooth when migrating to a&nbsp;SIPtrunking architecture
* Protect VoIP assets from the security threats posed by a migration to&nbsp;SIP &nbsp;trunking
* Advanced security features – reduce risk for&nbsp;SIP&nbsp;trunk deployment
* Improved business continuity with high availability voice services
* Simplified approach to expansion of call capacity
* Reduce overheads with lowered call costs and simplified integration with&nbsp;SIP&nbsp;providers

'''SBC&nbsp;for IP&nbsp;PBX&nbsp;to&nbsp;SIP&nbsp;Trunks'''

http://wiki.freepbx.org/download/attachments/49578372/sbc-ippbx-sip-trun-case%5B1%5D.png

* Known demarcation point
* Reducesinteropissues/resourcewithcore
* Transcoding if required

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'''Multi&nbsp;ITSP&nbsp;Support for IP-PBX'''
http://wiki.freepbx.org/download/attachments/49578372/sbc-ippbx-multi-sip-trunk-case%5B1%5D.png


* All advantages of&nbsp;SBC&nbsp;for&nbsp;SIP&nbsp;trunks
* Least Cost Routing
* Load balancing

'''Lync Interworking with IP-PBX'''

http://wiki.freepbx.org/download/attachments/49578372/sbc-lync-multi-sip-trunk-case%5B1%5D.png

* All advantages of&nbsp;SBC&nbsp;for&nbsp;SIP&nbsp;trunks
* Least Cost Routing
* Load Balancing

'''SBC&nbsp;For IP-PBX&nbsp;to&nbsp;SIP&nbsp;Trunks'''

http://wiki.freepbx.org/download/attachments/49578372/sbc-hosted-pbx-use-case%5B1%5D.png

* Known demarcation point
* Reducesinteropissues/resourcewithcore
* Transcoding if required
* Protects Hosted&nbsp;PBX&nbsp;from&nbsp;DDOS&nbsp;and attacks 
** Registration Storms
** Identity Theft