December 09
Page 138
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Siemens Enterprise Communications
What Is a Session Border Controller
§ VoIP “firewall”
§ Provides VoIP and UC security
for the enterprise network border
§ Designed to work in parallel with
data firewall
§ Terminates SIP trunking services
from SIP Service Provider (SSP)
§ Extends communications to
remote workers and agents
without special hardware
§ Securely connects multiple
locations
Role of the SBC Typical Deployment Scenarios
IP-PBX
Gateway
Users
SBC
SSP
PSTN
Internet
Remote
worker/agent
SIP
Trunks
WAN
Remote
Location
HQ
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