phonebank
verbUK /ˈfəʊn.bæŋk/
US /ˈfoʊn.bæŋk/
To call many people on the phone to ask for help or votes.
Volunteers phonebank every evening to remind people to vote.
OTHER MEANINGS
2. A group of phones or people making calls together for a cause.
She joined the phonebank at the campaign office.
3. To raise money by calling people on the phone.
The charity phonebanks during the holiday season.
4. To survey people's opinions by telephone.
Researchers phonebank to collect answers for the study.