VOIP: Use of Internet-based phone service up 21% (Chicago Tribune)
VOIP: Use of Internet-based phone service up 21% (Chicago Tribune)
U.S. subscribers to Internet-based telephone services grew 21 percent, to 6.9 million, in the second quarter, with cable TV companies expanding their lead in market share compared with Vonage and other pure-play providers, research firm TeleGeography reported Wednesday.