ATA = Analogue Terminal Adapter

Connects an Analogue Telephone to a VOIP network
Usually has an Ethernet jack, and an RJ-11 phone jack.

Sometimes referred to as VOIP Gateways, TA (Terminal Adapter), FXS Adapter, etc. Some ATAs are locked to a particular provider, and useless with any other. Virtually all ATAs use either the SIP or IAX industry standard protocol.

See:

• Analog Telephone Adapters
• VoIP Gateways
• MWI - Message Waiting Indicator