A comparison between some of the most widely used server software for VoIP servers. Details the operating system the software support, protocol used, encryption, and licensing.

1. VoIP Server Software Comparison of Top VoIP Server Software

2. Comparison of VoIP Server Software VoIP stands for Voice over Internet Protocol Phone calls using the Internet infrastructure VoIP server software being compared: AS5300 Asterisk PBX Cisco Unified Communications Manager FreeSWITCH sipX ECS IP PBX

3. AS5300 Operating System Linux , Windows Server 2003 Licensing Closed Compatible with SIP, UNIStim, MLPP Encryption SSL, TLS, SRT, SDESC

4. Asterisk PBX Operating System Linux , Mac OS X, Solaris Licensing GPL, Freeware Compatible with SIP, H.323, IAX Encryption TLS, SRTP

5. Cisco Unified Communications Manager Operating System Linux Licensing Proprietary Compatible with SIP, H.323, SCCP, MGCP Encryption TLS, SRTP, SSL

6. FreeSWITCH Operating System Windows, Linux/BSD, Mac OS X, Solaris Licensing Mozilla Public License, Freeware, Open Source Compatible with SIP, NAT-PMP, STUN, SIMPLE, XMPP, Google Talk, IAX, H.323, MRCP, RSS, Skype Encryption TLS, SRTP, ZRTP

7. sipX ECS IP PBX Operating System Linux Licensing L-GPL, Open source Compatible with All native SIP Call Control Encryption HTTPS, TLS

8. Overview AS5300 wins in security encryption Asterisk PBX, FreeSWITCH, and sipX ECS IP PBX supports free development of software FreeSWITCH is compatible with most commonly used protocols FreeSWITCH is compatible with most commonly used operating system Asterisk, Cisco, and sipX ECS are better suited for large enterprise

9. Connect Contact Colocation America for more information about VoIP services www.ColocationAmerica.com 1.800.296.8915 sales@colocationamerica.com

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