How to disallow EX90 extension to call itself

[Daniel Gomez]

Hello,

We have some EX90 devices registered directly on a CUCM 8.6.

Most of the EX90 devices have multisite feature license so they can create video conferences.

For some unexplainable reason, some users are dialing themselves (they call the same extension they have) when they create a conference and therefore they create a loop (noise and video loop).

Is there any way to prohibit EX90 to dial the self extension?

Regards,

[ttrentler]

The only way I know of doing this would be to put the DNs in different partition that the device's Calling Search Space does not have access to.