Which of this is used to overcome the limitation on the number of characters that can be sent in a single SMS text message ?
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VMS
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concatenated short message service
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EMS
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MMS
Standard SMS messages are limited to 160 characters. Concatenated SMS (also called long SMS or segmented SMS) breaks longer messages into multiple 160-character segments that are reassembled by the recipient's phone, appearing as one continuous message. VMS is voicemail, EMS is an enhanced messaging service (rarely used now), and MMS is for multimedia content.
Concatenated SMS (also called 'long SMS') is the technique used to overcome the standard 160-character limit of a single SMS: the message is split into multiple linked segments, each carrying a user data header identifying it as part of a multi-part message, and the receiving phone reassembles them into one longer text. VMS (voicemail/video), EMS (Enhanced Messaging Service, adds simple formatting/images) and MMS (Multimedia Messaging Service, for photos/video/audio) solve different problems — none of them exist specifically to extend plain text length the way concatenated SMS does.