Simple VoIP requires very little equipment. More advanced communication Voice over IP requires more sophisticated equipment. What is the equipment for VoIP?
Common VoIP Hardware Devices
IP Phones - Special Phones for VoIP
What is an ATA?
What The Lights On Your Phone Adapter (ATA) Mean
What is a Router? - The Functions of a PBX
For phone users who want a type of VoIP is more or less as their existing fixed line with traditional phones, the most appropriate types of VoIP services are subscription and equipment services. They are intended mainly to households and small businesses. Upon subscription, the user is sent an adapter (ATA) and is given a phone number. This requires an Internet connection, which adds cost, but the overall cost is relatively much weaker. Added benefits are the many features that come with VoIP.
Factors Affecting VoIP Voice Quality
Running VoIP on a Wireless LAN