dtmf & GXV3275


Hi guys!

I’m using a 2N door intercom to call a smart phone (using the programmable dtmf command lines of the 2N). Once the smartphone has answered, the 2N transfer the call to a Grandstream GXV3275.
Now, from this unit I need to control a ptz Cam…anyone know if the GXV has a dtmf line command?

Tks a lot…