When it comes to finding synonyms for the word "redials", several alternatives can be considered. One potential option is the word "repeats", as it implies the act of dialing a phone number again. Similarly, "retries" can be used as another synonym, suggesting the repetition of the dialing process. In the same vein, "resends" is also fitting, capturing the idea of sending another signal after failure. Another possible synonym is "reconnects", which implies the remedy of a dropped call by dialing again. Lastly, the term "recalls" can be employed as a synonym, emphasizing the action of calling a phone number that was previously dialed.