get through (to someone)
Definition: to succeed in contacting someone on the telephone.

(This phrasal verb has more than one meaning)
E.g.1: Honestly! I tried to phone you but I couldn’t get through – there must have been a problem at the exchange.
E.g.2: If my number was engaged, why didn’t you try again later? You’d have got through to me eventually!

This phrasal verb can be separated. (E.g.2)