Use a normal phone with a Grandstream ATA

Plug in a home or office phone and start calling.

An ATA lets an ordinary phone work on a VoIP service.

Steps

1. Plug your phone into the port marked Phone (or FXS).
2. Pick up the handset and listen for a dial tone.
3. Dial as normal.
4. If there's no dial tone, see “Grandstream ATA has no dial tone”.