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Messaging basics

4 posts

Black-and-white illustration of two smartphones showing a rich chat with a photo and typing dots beside a plain text message
October 25, 2026

RCS vs SMS: features, encryption and fallback explained

Read receipts and rich media depend on the conversation. Check RCS support, encryption and fallback before assuming how a message will be sent.

Black-and-white illustration of a smartphone with a text bubble and a separate picture message
October 25, 2026

SMS vs MMS: differences, attachments and message limits

Distinguish a text from a media attachment, check the sending method on your phone, and find out why a photo can fail when a short SMS works.

Black-and-white illustration separating the short-code sender 12345 from the verification code 482901 inside a message
October 25, 2026

What is a short code? SMS senders, replies and country limits

A short code identifies a messaging sender or destination. Learn how to read it, distinguish it from a login code, and check whether you can reply.

Black-and-white illustration of a smartphone with a text bubble splitting into smaller message segments
October 25, 2026

SMS character limit: why texts split into multiple messages

See why a 161-character text needs two segments, how Unicode changes the limit, and what to check before sending a long SMS.