If you wish to compliment your phone by using aedge of the telephone.located over the backtelephone. When an incoming call is received,the shaker will be activated when the phone rings.located over the back edge of the2017- Shaker (Optional)SHAKER ref: CLA2 connect the shaker plug in thesocketNote: This option must be set in the ALARM ANDRINGER OPTIONS item (page 9) to be activated.To purchase a SHAKER see item 1 above.18- Headset with microphone (optional)If you wish to answer or make calls by using aGeemarc headset ref: CLA3, connect the headsetplug in the headset socketNote:When using a headset, the speaker will beactivated and it’s recommended to adjust the spea-ker to the low position.Options