Intercom systems can offer a telephone or video communication option. Residences may opt for telephone communications for more complex configurations. Hands-free answer features are available, as well as an easy disconnect option.
Video intercom systems provide the same features of a telephone system but add a visual communication element that can enhance security. A visual identification of a residential guest can create a much more secure environment. Security-aware tenants in particular find this mode of identification much more reassuring than voice-only intercom communications.