Trillions of text messages are sent and received via SMS-enabled devices every day, but have you ever stopped to ask, “What is SMS, exactly?” One of the oldest forms of mobile messaging, SMS messages ...

What does “Sent as SMS via server” mean? This “Sent as SMS via server” message primarily pops up on Android smartphones when the person you are about to text is no longer connected to RCS. RCS ...

On Android, blue dots or chat icons show that RCS is enabled, giving you advanced texting features missing from traditional ...

Phone users have long dreaded the Android green bubble, showing that a text was sent as an SMS or MMS message instead of ...

Blue text bubbles on Android are from Google's Custom Bubbles feature, which let users change the color of message bubbles in ...