First, when we mention "voice" voice in the digital network field, it mainly refers to IP-based voice VoIP ). In the online world, people like to connect to a technical term with the first letter of a selected word, and usually end with an uppercase word that refers to the same transaction. This is a basic rule.
The words you mentioned refer to wireless VoIP. As we all know, the network is based on the layer-7 Open System Interconnection mode. Voice and call control SIP, H.323, etc.) refers to the application of Layer 7 to Layer 7), IP refers to the transport protocol layer 4th ), 802.11 is the detailed provision of the data link layer and the physical layer are layer 2nd and layer 1st respectively.
It can be said that all these words can be attributed to VoIP running on 802.11 Network. Although Wi-Fi is committed to creating a new word, VoWLAN seems to be more popular.
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