Phone quality is often poor. We all know the "Can you hear me now?" cell phone commercials. They are popular for a reason. Although cell phones have come a long way in terms of quality, by and large, they are still a poor substitute for a landline. Within the sales industry, representatives often make cold calls from a landline because they recognize that the phone quality is better and they don't want to risk losing a prospect because of poor phone service. It is a lot of work and preparation to get an employer to contact you. So why would you want to risk it for poor phone quality?.