Telco, a national telemarketing firm, usually picks a number of sites around the country from which it makes its calls. As a service, AD&D’s telecommunication marketing department wants to help Telco...

Telco, a national telemarketing firm, usually picks a number of sites around the country from which it makes its calls. As a service, AD&D’s telecommunication marketing department wants to help Telco choose the number and location of its sites. How can IP be used to approach this problem?