Hi, I want to configure a "panic button" in our classroom ip phone. For now I've just configure a specific CSS and translation pattern so when we activate the line or offhook the phone, they automaticly call the security desk. But the user ask me if it's possible to push a button or line and call the security but do not activate the speaker. So the security can hear what happens in the class but the classroom can't hear the security guy. It's like for a shooter guy enter the class and we don't want to notic him that we call security.
So is it possible to make that. I have CUCM 8.6 and 6921 Cisco Ip phone.
Thanks
