Use a different phone number if possible. If I am recruiting for a client I will give my office number. I like this because it does not have applicants calling the business during the busiest time of day. This could project a negative image to qualified applicants. I also like this since it gives me the opportunity to do phone interviews.
Phone interviews are extremely helpful in successful recruitment.
Phone interviews also help weed out prospects that are not prospects. Interviewing someone with no potential accomplishes nothing. Schedule interviews in a private area. Determine beforehand if you need to hire on the spot or interview a number of candidates. Let your prospect do all the talking.