noun
message area call
Technical term in computing, likely referring to a type of call within a messaging area or local network context. Rare outside specialized documentation.
このシステムでは準市内通話の料金が適用されます。
In this system, message area call rates apply.
Compound of 準 (semi-, quasi-), 市内 (within a city), and 通話 (telephone call). The exact derivation is uncertain; it appears to be a technical coinage for a specific call classification.