I use a cisco CUCM 4.2. I want to know which fetaure allow to do one thing:
When i am speaking with user A for example on my Ip Phone and user B call me, that it receives a message telling him that I am already in communication, and ask him to wait. (for example : the user that you try to contact is already online, please wait)
I want to know which feature can help me to do this on cisco CUCM 4.2 and how to do it?
This is normally different from MoH which just play a music while the phone rings.
But when i am on a call and an other call me, i would like they hear a message of type : I am already online, please wait.
If when i am on a call and an other call me and hear just a ring tone,he may believe that I am here but I wan't to answer but when he hear a message (i am already online, please wait), he know that i am online and he could wait or callback.