This list of companies in the category Internet Telephony Service Provider directory is collected and published by Masterseek Corp. The list of companies in Internet Telephony Service Provider directory contains detailed company information, tweets, social networking, management, e-mail, phone number, web address, financial information, ratings, reviews and maps. Neither Masterseek corp nor any of its data or content providers shall be liable for any errors or delays in the list of companies in Internet Telephony Service Provider directory, or for any actions taken in reliance thereon. By accessing the Masterseek site, a user agrees not to redistribute the information found therein. Internet Telephony Service Provider. Copyright © 2012 Masterseek corp. All rights reserved.