In plain English
It is an extra package added to a mobile plan for times when the phone connects to a network other than its usual home network. It is meant to allow or increase calls, texts, or data use in that situation, especially during travel abroad.
In context
Here, "roaming add-on" names an optional extra package for the phone plan that allows or increases calls, texts, or data use while abroad on another network.
- Situation
- Choosing mobile plans, allowances, roaming, fair-use, and add-ons
- What it communicates
- names an optional extra for use abroad at checkout.
Meaning limits
The term itself does not say how much extra use is included, how long it lasts, or where it applies.
Examples
“Her usual plan worked at home, but for the trip to Japan she bought a roaming add-on for calls and data.”
“Their work phones already have a roaming add-on for texts and data while staff are overseas.”