But the media is handled by FreeSWITCH, so it doesn't really matter if sip supports it... It's something theoretically FreeSWITCH could handle for you...
-Avi
On Jun 12, 2013 12:17 PM, "Jeff Bernhardt" <jeff@askcornerstone.net> wrote:Yes, we have a customer who used to work in a place with an old Panasonic PBX and Panasonic phones that had this feature and he loved it. His secretary could whisper in his handset, he’d hit a key and be able to talk to the secretary really quick without the other party even knowing he’d done anything. We were told by a guy who used to consult for us on Asterisk stuff that this isn’t possible due to the nature of how SIP works, but we’ve always kind of wondered.
Jeff Bernhardt
Systems Administrator
Cornerstone Consulting