Polycom: Press the # button on the remote control.
Tandberg/Cisco: Press the # button on the remote control.
ZTE/TWS: Enabled by default.
Radvision/Samsung VC240: Enabled by default.
LifeSize Black Remote Controls: Press the button above the number 3 on your remote control to toggle between Touch Tone Mode and Camera Presets Mode.
LifeSize Grey Remote Controls: You can enable Touch Tone Mode by pressing the OK button on your remote. This will access the Call Manager Menu. You can now start using the number pad.
TIPS for LifeSize users: Select Touch Tone Mode by default from the Call Manager Menu if not using any camera presets.