info@voip-sip-sdk.com Tel: +36 1 371 0150


Did you know?

This SDK was used to build:

Ozeki Phone System XE - VoIP PBX Software for Developers Which is a high performance PBX system supporting Mobile and Desktop phones.


It was also used to create Ozeki 3D VoIP softphone. A cool SIP client that allows 3D Video calls.

H323 protocol

This article is a brief introduction about H323 protocol in relation with Ozeki VoIP SIP SDK. After reading through this page you will be fully familiar with all the essential terms concerning H323 protocol and what you will need for creating your own solution using Ozeki VoIP SIP SDK.

H.323 is an ITU VOIP protocol. It provides a foundation for audio, video, and data communications across IP-based networks, including the Internet. Today, most of the world's VoIP traffic is carried over H.323 networks, with billions of minutes of traffic being carried every month. It is widely implemented by voice and video conferencing equipment manufacturers, is used within various Internet real-time applications and is widely deployed worldwide by service providers and enterprises for both voice and video services over IP networks.

H.323's strengths is the ability of serving in a variety of roles, including multimedia communication (voice, video, and data conferencing), as well as applications where interworking with the PSTN is vital. H.323 was designed from the outset with multimedia communications over IP networks in mind, making it the perfect solution for real-time multimedia communication over packet-based networks.

This article introduced you the basic knowledge about H323 protocol and showed how Ozeki VoIP SIP SDK can help you to fulfill your wishes about this topic. If you have read through this page carefully, you already have all the knowledge you need to start on your own solution.

As you are now familiar with all the terms concerning this topic, now it is time to take a step further and explore what other extraordinary solution Ozeki VoIP SIP SDK can provide to you.

If you have any questions or need assistance, please contact us at info@voip-sip-sdk.com

You can select a suitable Ozeki VoIP SIP SDK license on Pricing and licensing information page

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