Breakdown of No contesta al móvil; tendrá clase todavía.
Questions & Answers about No contesta al móvil; tendrá clase todavía.
Both contestar and responder can mean to answer, but in Spain contestar al móvil / al teléfono is very natural for answering the phone.
So:
- No contesta al móvil = He/She isn’t answering their mobile phone.
- No responde often feels broader, like isn’t responding in general, not necessarily specifically by picking up the phone.
In this sentence, contestar fits the phone context especially well.