beautypg.com

5 dtmf signaling, 6 terminating a call, 7 headset and speakerphone usage – Teledex IP250DVoIP User Manual

Page 18

5 dtmf signaling, 6 terminating a call, 7 headset and speakerphone usage | Teledex IP250DVoIP User Manual | Page 18 / 34 5 dtmf signaling, 6 terminating a call, 7 headset and speakerphone usage | Teledex IP250DVoIP User Manual | Page 18 / 34