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• Asterisk OSP
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• Approach to VoIP Security
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• Compare Top PBX Vendors
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• SIP
  • What´s SIP got to do with it?
  • SIP Security
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• SER Getting Started
  • Part 1
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  • Part 4
• Telecom Security Threats
• VoIP Security
• What Is a Call Center?
• VoIP Bandwidth Calculation
• The Value of Open Source
• Enhancing VoIP

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What's SIP Got To Do With It?

Five Compelling Reasons Why SIP Will Dominate Enterprise IP Telephony

Introduction

Recent LAN and WAN technologies make voice sound good.

Since 1998 when 3Com brought to market the first IP PBX, the enterprise Voice over IP (VoIP) phenomenon has changed not just telecommunications, but also enterprise networking. The 3Com® NBX® system ushered in a new era of communications. For the first time, companies were able to leverage their investments in high performance local area networks (LANs) to deliver real-time services such as IP telephony.

In fact, the major standardized innovations in Layer 2 switches and enterprise routers in the past five years-virtual LAN (VLAN) segmentation, packet prioritization, Power over Ethernet (PoE), differentiated services, multi-protocol label switching-enhance converged networking and its delivery of high-quality audio.

Thousands of references on Google.com, January 2005.

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