dialer
nounUK /ˈdaɪələ/
US /ˈdaɪələr/
A dialer is a thing or person that calls phone numbers.
The phone's dialer made it easy to call Grandma.
OTHER MEANINGS
2. A computer program that automatically calls phone numbers.
The company used a dialer to reach many customers.
3. A device or app used to connect to the internet by phone line.
He clicked the dialer to get online.
4. A person who makes phone calls, especially for a job.
The dialer called fifty people before lunch.