To date, solutions have typically centered around simply wearing them -- a headset perhaps, or a cellphone/cordless house relay, or having them be ubiquitous (i.e. House, Answer The Phone)

These approaches, however, have severe limitations -- you get home, you change, and therefore carying a phone on a belt is a pain, taking every call on house-wide speaker is impractical if not dangerous, etc.

In this proposal, a base uses wheels or other suitable types of transport (with a portable battery, it can double as a charger, and as a nice speakerphone).

The base can home in on the voice command and navigate the room Roomba style, and bring the phone. Once the phone is picked up, the base simply follows it around, staying at a respectful distance, so that when the conversation is over, you can simply put the phone in its charge slot.