Call monitor with whisper

I can’t find any info on using call monitor with whisper. I this possible with FreePBX 2.9 distro?

The barge functionality of iSymphony lets you listen to the call and mutes you by default.

in FreePBX you can create a page group and enable whisper… useful for a receptionist that needs to communicate with a doctor without being able to hear the patient caller, nor the patient hear her.

FreePBX does not do whisper but applications like FOP2 and iSymphony will let you do it