The frequency of using a phone or cellular phone for business varies widely depending on the individual's role and the nature of their work. Many professionals, especially in sales, account management, support teams, delivery, and teaching, rely heavily on their mobile phones for business communication, often using them daily to make calls, send messages, and manage tasks

. Data shows that people check their phones on average 58 times per day, with about 52% of these checks (around 30 times) occurring during work hours, indicating frequent use of phones for business-related activities during the day

. Additionally, 59% of employees use a desk phone every day, though many also rely on mobile devices for business communication

. Smartphone usage overall is very high, with the average person spending about 4 hours and 37 minutes daily on their phone, which includes business and personal use

. The trend toward mobile commerce and mobile business communication is growing, with millions of users worldwide increasingly dependent on smartphones for both personal and professional purposes

. In summary, many people use their phones or cellular phones for business purposes daily, often multiple times throughout the workday, especially in roles that require constant communication and coordination. The exact frequency depends on the job but is generally quite high in modern work environments.