How do I use three-way calling?


Dial the first party as you would with any other call.

Once you have established a connection, press the flash button or the switch hook on your phone. When you get a dial tone, dial the second party.

Once you are connected to the second party, press the flash button or switch hook again. This will bring back the first party, allowing the three of you to talk to each other.


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The Domatic ATA (Analog Telephone Adaptor) brings traditional telephones to the networked world. It is a handset-to-Ethernet adaptor that interfaces regular analog telephones with IP-based telephony networks. The Domatic ATA supports two telephone lines.