Overheard: Word of the Day

Oct 7 2013   5:05PM GMT

Word of the Day: session border controller

Margaret Rouse Margaret Rouse Profile: Margaret Rouse

Word of the Day

Today’s WhatIs.com  Word of the Day is  session border controller (SBC), a dedicated hardware device or software application that governs the manner in which phone calls are initiated, conducted and terminated on a Voice over Internet Protocol (VoIP) network. Basically, an SBC acts a router between the enterprise and carrier service, allowing only authorized phone calls to pass through a connection point (border).  Continued…

Related Terms

VoIP
QoS
unified communications
firewall

“Session border controllers (SBC) are the traffic cops of the IP telephony infrastructure.”– Michael Brandenburg

Quiz Yourself

What do you call unsolicited marketing phone calls on a VoIP network?
a. SPIT
b. SMOG
c. SPAM
d. SPIN
Answer

Related Reading

Guide to session border controllers: Inside IP telephony’s traffic cop
Learn more about the role that session border controllers play in an IP telephony infrastructure.
Virtualized session border controllers: Are there drawbacks?
It’s important to understand the strengths and weaknesses of this software-based delivery model.
SIP-flood and TDoS attacks: What is the difference?
Learn more about how these attack vectors work and which type of attack might be identified and thwarted by an SBC deployed at the network edge.

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