In plain English
It is a bolt-on package for a mobile service plan. It changes what is included or what you pay for calls, texts, or data when you are outside your home country or when you communicate with other countries.
In context
Here, “international add-on” means an optional extra package on the plan that gives allowance or special rates for international calls or texts.
- Situation
- Choosing mobile plans, allowances, roaming, fair-use, and add-ons
- What it communicates
- names an optional extra for international calling or texting.
Meaning limits
The term alone does not say which countries, services, rates, or allowances are included.
Examples
“She added an international add-on to her mobile plan before her trip so her calls and texts from abroad would be charged at special rates.”
“For weekly calls to relatives overseas, he kept an international add-on on his plan.”