Provisioning a 7965G to work with Ring Central

[carlos.procar]

I bought a refurbished 7965G I'm trying to get it provisioned but Ring Central does not offer any support for the phone.  I called Cisco I got no help.

Ring Central tells my my firmware should be SIP.  I don't know what that means but it sound familiar, I believe the ebay posting mentioned that it had downloaded SIP.  

I just need help on where to enter the SIP Domain, Outbound Proxy, User Name, Password, authorization ID.  I tried playing with the menu and nothing looks familiar

[Leo Laohoo]

For a start, you'll need the following: 

1.  DHCP Option 150; 

2.  TFTP server; 

3.  Firmware in the TFTP server; and

4.  Working configuration in the TFTP server