Many companies use telesales, in particular cold calling, as part of their marketing strategy. However, they often make the mistake of trying to cut corners financially. When a temp agency is offering staff for a low all-in price and you can change the number of sales people on a daily basis if need be, there seems little point in going to the expense of recruiting your own staff and putting them through sales training.
However, the smaller a business, the more important it is for them to have high quality sales people. The temp is probably being paid close to the minimum wage. They have little sense of loyalty or concern for whoever may do their job in the future. However, a true professional can ensure that all opportunities are maximised.
One of the most important assets for any organisation involved in selling is a reliable, up-to-date database of prospects. For example, the first time you ring certain companies, their switchboards may have policies in place to ensure you don’t get to talk to the person you need to. A note of this will ensure that a different tack is tried the next time and you don’t just have a series of people ringing and encountering identical resistance.