Answer de phone and say bueno and no comprende ingles. Might as well get some benefit fom amnesty, right?
Just for your future reference, the proper verb conjugation is “no comprendo ingles”, which means “I don’t understand English”. “Comprende” means he or she doesn’t understand.
If you’re going to respond in Spanish on the phone that you don’t understand English, it would be a good idea for you to know how to speak Spanish properly first.
“Answer de phone and say bueno”
Or gibberish!
“Is this the place I have received? No?” And so on.
No, if you answer in Spanish they’ll switch over in a heartbeat.
Answer with “Privyet! Kto eta? Ne ponimayu angliski!”
(Russian, for those of you in Rio Linda)