can any one help me in this case:
i have 7906 phone and want to upgrade its firmware to SIP v8.x
what is the easiest way to do this/
i have ccm 5.1 that supports 7906, i added manually SIP phone from the CCM admin page, but the result is that 7906 did not register, it gives registration rejected!
can any one guide me how to do this upgrade?