{"id":583,"date":"2019-02-20T10:20:58","date_gmt":"2019-02-20T07:20:58","guid":{"rendered":"http:\/\/trueconf.com/blog\/?p=583"},"modified":"2026-04-13T15:07:23","modified_gmt":"2026-04-13T12:07:23","slug":"why-sip-better-than-h323","status":"publish","type":"post","link":"https:\/\/trueconf.com/blog\/reviews-comparisons\/why-sip-better-than-h323","title":{"rendered":"Pros and Cons of H.323 and SIP"},"content":{"rendered":"
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\n Updated April 2026<\/strong><\/span>\n<\/div>\n

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\"H.323<\/p>\n

Quick Answers \u2014 What You Need to Know Now<\/h2>\n\n\n\n\n\n\n\n\n
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Question<\/p>\n<\/th>\n

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Direct answer<\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

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Which protocol dominates the market today?<\/strong><\/p>\n<\/td>\n

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SIP \u2014 used in more than 70% of active UCaaS and cloud PBX deployments<\/p>\n<\/td>\n<\/tr>\n

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Is H.323 still relevant?<\/strong><\/p>\n<\/td>\n

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Yes, in legacy systems, defense, telemedicine, and Cisco\/Polycom hardware<\/p>\n<\/td>\n<\/tr>\n

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Which one is easier to implement?<\/strong><\/p>\n<\/td>\n

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SIP \u2014 text-based ASCII, similar to HTTP; easier to debug<\/p>\n<\/td>\n<\/tr>\n

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Are SIP and H.323 functionally equivalent?<\/strong><\/p>\n<\/td>\n

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For enterprise video conferencing: yes. Every H.323 extension has an SIP equivalent<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Key market numbers:<\/b><\/p>\n