How To Connect Vtech Phone To Base. The next set of handsets you purchase should be the same model number and phone type to ensure compatibility with your current VTech system. Base unit power supply If you do not have the power supply adapter that came with the VTech IP8100 cordless phone it is important to replace it with an adapter that has the same power specifications as the original.

The telephone base. FIND HANDSET Press once and then release to page all system handsets. The telephone base recognizes and counts a headset the same as a handset.
Before you start the installation of the VTech IP8100 cordless phone make sure you have the following.
Make an intercom call with an extension. I know that with this model of Vtech you cannot add or register new handset to the base. Purchase additional phones as needed. Conference calls The system can support 6-party conference with a maximum of four outside calls and two system extensions including the initiating party.

