Sajid submarine sandwiches

Solution: Give a warning to the employees and let them be aware that all phones and electronic devices can only be accessed on breaks and/or through emergency

Solution: Fire the employees on the phone

Solution: Keep the phones in a safe for the whole day if it was already a constant problem

Solution: Manage the company till the end of the day and have a stern talk with the employees at closing time in the attempt to change their behaviours

Solution: Instantly apologies to the customer and look happy to take the order instead with the customer

Solution: Fire the arguing employee

Solution: Have an informative and critical discussion with the employee and advise him/her to not act out again or they will be fired after

Solution: Make the crew who are not doing this assigned jobs shapen up, answer the phone and clean the restaurant

Solution: Humiliate the procrastinating employees by yelling at them in front of the customers to make them feel scared of you

Solution: Fire them for not doing their tasks

Solution: Talk to them after the workday and make it clear that this is their last warning

Solution: Do not say anything and let the employees learn by themselves and through time