Chapter 4 - Networking and the Internet - Section 4.2 - The Internet - Questions & Exercises - Page 188: 8

Criteria to consider may include cost, portability, the practicality of using your computer as your phone, the need to preserve any existing analog phones, emergency 911 service, and the reliability and service areas of the various providers involved.

Criteria to consider may include cost, portability, the practicality of using your computer as your phone, the need to preserve any existing analog phones, emergency 911 service, and the reliability and service areas of the various providers involved.