Atcom IP Phones

Atcom supply the AT320 which has been available for a while and the AT530 which is relatively new. Both can be configured (flashed) to use either the SIP or the IAX2 protocol. They are available with or without power over ethernet (PoE).

Using IAX2 they are ideal as a remote extension to an asterisk based softPBX. The IAX2 protocol works very well through a remote firewall or nat router and is straightforward to configure.

The firmware is publically available. However, the download links are sensitive to your browser. If you are using IE try here. For firefox try here.