CUCM to CUC integration

[GeorgeV.]

Hello all.

I successfully integrated CUCM with Unity connection via SIP trunk , version 12.5

Now I need to secure this SIP trunk ( TLS mode) for signaling only, SRTP not required.

Should I first to set mixed mode on CUCM or it's not mandatory ? 

Please advise.

George

[Roger Kallberg · Accepted solution]

You do not need to set CM to mixed mode for this.

[GeorgeV.]

Thank you, Roger.

And for SRST must set up mixed mode first ?  Correct ? 

[Roger Kallberg]

Never had any experience with secure SRST, so I'm afraid that I don't know and can not help you with that.