Port 19294
Google Talk Voice/Video
Port 19294 is associated with Google Talk's voice and video features. It facilitates real-time communication by enabling the transmission of audio and video streams during Google Talk conversations, supporting a smooth and low-latency experience..
Technical Details
Port 19294 historically served Google Talk for establishing voice and video communication alongside the main messaging channels. By creating a dedicated communication path, it helped manage the high-bandwidth requirements of audio and video streams during peer-to-peer or server-assisted calls.
The communication over this port typically involves signaling protocols to establish the session, after which media streams are transmitted. While the precise implementations varied, the technology behind Google Talk relied initially on proprietary protocols and later integrated more standardized ones like XMPP with extensions for voice and video.
This port often complemented ports used for messaging and presence information and, in some cases, facilitated NAT traversal strategies (such as STUN or ICE) to optimize connectivity. The transport is primarily TCP, focusing on reliability of the media delivery over fluctuating network conditions.