This hard
phone is actually an ATA (analog telephone adaptor). It enables
you to connect your POTS (plain old telephone system) phones
to the Internet. Think of it as a phone jack for VoIP. It
has one ethernet port and two RJ11 phone jacks. It is fairly
easy to configure. Out of the box, it is configured for DHCP.
This means that it gets its IP address from your DHCP server
automatically. Full documentation can be found at
Cisco's
Site.
Since ip2ph works only with SIP protocol, you need to make
sure that you are running the correct SIP firmware on your
phone.