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PCE
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CPC Subgroup
H04L 51/04

Real-time or near real-time messaging, e.g. instant messaging [IM]

Full Title

User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail > Real-time or near real-time messaging, e.g. instant messaging [IM]

2 direct subcodes

Child Classifications

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  • H04L 51/043 using or handling presence information
  • H04L 51/046 Interoperability with other network applications or services