What port does H.323 use?

H.323 uses port 1720 by default.

Unknown

H.323

Q: What is H.323?

H.323 (H.323) is a Application Layer protocol in the VoIP & Streaming category. ITU-T standard for multimedia communications over packet networks. Comprehensive umbrella protocol covering audio (G.711, G.729), video (H.261), and signaling for enterprise VoIP.

Application Layer — VoIP & Streaming

Protocol Overview

Full Name H.323

Abbreviation H.323

OSI Layer Application Layer

Category VoIP & Streaming

Default Port 1720

About H.323

ITU-T standard for multimedia communications over packet networks. Comprehensive umbrella protocol covering audio (G.711, G.729), video (H.261), and signaling for enterprise VoIP.

Application Layer VoIP & Streaming Port 1720

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