Questione giuridica chiave
Whether the employment relationship was true part-time work or work on call triggering wage protection under Art. 324 OR.
Decisione estratta
The binding facts showed unequal part-time work requiring mutual agreement for each assignment, not true part-time work on call with an employer duty to assign work.
Motivazione estratta
The teacher was free to adjust her offered hours; each year's workload had to be agreed before the school year. Without an obligation to accept a unilateral call-up, the employer could also refuse a reduced or altered offer.