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Yes, SMS (Short Message Service) does work without requiring an active data connection. SMS is a text messaging service that operates over cellular networks, specifically on the signaling channel used for voice communication. It is a separate system from internet-based messaging services like instant messaging or chat apps.
SMS messages are sent and received using the cellular network's infrastructure, which means they can be sent and received even when you don't have an active data plan or internet connectivity on your device. As long as your mobile phone has a cellular signal and is within range of a cellular tower, you can send and receive SMS messages.
SMS messages are limited to 160 characters per message, but longer messages can be split into multiple parts and reassembled on the recipient's device. This makes SMS a reliable and widely accessible communication method, as it does not rely on internet connectivity or data services.
It's important to note that while SMS messages can be sent and received without an active data connection, some advanced messaging features like read receipts, multimedia messages (MMS), or group messaging may require a data connection or additional services provided by your mobile carrier. However, the basic functionality of sending and receiving text messages via SMS remains unaffected by the availability of data services.
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