Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to get a 900 number [title] Choose whether to offer a live-call or a recorded-call service. [step] A 900-number company can forward calls to you so you can answer the phone personally or you can choose to have a recorded message waiting for your customers. [title] Choose a billing plan.

Ending1: [step] You can choose whether to charge your customers per minute or a flat-rate fee when they call. [title] Pay the set-up fee and agree on a monthly maintenance fee. Ending2: [step] Talk to someone about billing plans with 10-24 hourly customers. Consider the potential benefits of calling you " same day " and adjust the plan based on those levels. Ending3: [step] Your credit score should reflect the type of number you use, and in any given transaction. [title] Factor in your budget-there are a lot of services available for people with higher credit scores who prefer their own phone number than those who are more technologically competent. Ending4: [step] There are three types of billing plans: temporary and regular. A " temporary " plan allows you to schedule call calls to your customers.

Answer format: ending1/ending2/ending3/ending4