Landlines are basically dead, but most businesses still need desk phones. What do you do? Install VoIP.

Voice over Internet Protocol (VoIP) phones use your standard ethernet (or wireless) connection to reach the internet and make calls to standard phone numbers just like a regular landline would. And since they use the internet, you can connect them anywhere you have an internet connection and use the phone instantly. 

GT Computing can get you set up, port your numbers, and possibly even save you on your monthly phone costs in the process.