| http://www.w3.org/ns/prov#value | - H04M 1/2478{Telephone terminals specially adapted for non-voice services, e.g. email, internet access (centralized arrangements where telephones services are combined H04M 7/0024; for recording text messages H04M 3/5322; for accessing Internet H04M 3/4938)} Relationship between large subject matter areas Text-based messaging services in telephone networks such as PSTN or ISDN H04M 3/42382 Centrali
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