France has moved to an opt-in system for commercial phone calls — the country has now banned unsolicited telemarketing calls from August 11. 4 Reviews ← exclude selected types ← exclude selected tagsFrance has just introduced a major change to its telemarketing rules. Unsolicited commercial calls are now banned by default from today, August 11. Businesses could generally make unsolicited calls unless the consumer had opted out. Commercial calls are generally restricted to weekdays between 10 am and 1 pm and between 2 pm and 8 pm.