In spite of its global popularity, Internet telephony (VoIP), which is almost free for users, has not become a gold mine for its pioneers such as Skype and Vonage.
Internet telephony pioneers stumble
- PhysOrg
- 3. 10 2007 (14:04)
In spite of its global popularity, Internet telephony (VoIP), which is almost free for users, has not become a gold mine for its pioneers such as Skype and Vonage.