Voice-over-IP services allow users to place and receive telephone calls using special hardware or software, with the signal using the Internet instead of traditional copper phone wire. VoIP services have gained in popularity because they are easy to deploy and can significantly reduce costs for some consumers. However, some network administrators (or even some cautious parents) may seek to restrict VoIP services on their networks, either to reduce bandwidth consumption, or to deliberately restrict users’ access. Blocking many VoIP services is a straightforward matter. Writer Bio
