Take another look at the sentence:
The telephone __________ twelve times before Pablo would lift the receiver. He prayed the call was from a salesperson and not his psycho ex-girlfriend Maria.
The sentence requires the simple past of ring, an irregular verb. Rang is the simple past form.
|Verb||Simple Present||Simple Past||Past Participle|
Ringed, the form you chose, is a spelling error. Before you continue, review the rules for irregular verbs.