Securing SIP

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Last Updated: Apr 09, 2008

Locking down a SIP-enabled VoIP network is challenging. To seal your network tight, we've pulled together our most targeted information on securing SIP.
>>	What is SIP? VoIP expert Patrick Ferriter briefly explains.
>>	Think you're a SIP superstar? Test your know-how in this tricky terminology test.

VoIP protocol insecurity

Lisa Phifer, special to SearchVoIP.com (22 Jun 2006)

Like many Internet protocols, SIP was designed with simplicity, not security, in mind. And, although H.323 was created to meet broader goals, security issues have plagued it as well. Expert Lisa Phifer examines some of the vulnerabilities in this tip.

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ADVICE:
>>	Secure SIP-based IP telephony networks TIP :Why you should do this now.
>>	Securing VoIP networks with interoperable firewalls TIP :The emergence of Voice over IP (VoIP) as an affordable alternative to traditional telephony has ushered in a new wave of ...
>>	SIP Firewalls TIP :Why you need one for LD VoIP.
>>	SIP interoperability and testing TIP :This article discusses the interoperability and testing being done to support SIP.
>>	SIP school: A to Z on SIP TIP :Whether you're an end user or an IP network engineer, this primer will help you clear a strategic path to SIP.
>>	Can VoIP and firewalls work together for the greater security good? ASK THE EXPERTS :To allow VoIP to pass through the firewall, ports have to be left open. Can you point out some ways to help VoIP and ...
>>	Do session border controllers (SBCs) improve security at the level of VoIP traffic? ASK THE EXPERTS :Do session border controllers (SBCs) improve security at the level of VoIP traffic? Or is it only useful for NAT/PAT ...


WHITE PAPERS:
>>	Chapter of the Week: IP Telephony: Deploying Voice-over-IP Protocols -- Chapter 3: 'The Session Initiation Protocol (SIP)'


LEARNING TOOLS:
>>	VoIP Security Resource Guide

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