I have a lab setup with Cisco UCM 7.0.2 and i have two phones registered to the CUCM , one SIP and one SCCP phone.
I have another 3rd party PBX with phones ringing these two phones. I want to enable SRTP and my main question is as follows:
to activate SRTP for the Cisco phones do i need to set my CUCM to mixed mode ?
Both Cisco phones have MIC certs installed on them and looking at the settings on the phones it looks like the phones
are in non-secure mode. I used CTL client to see could i change the CUCM to mixed mode but i get a response saying i need
a security token.