Virtual intercom system

A system comprising:

• one or more computers;
• and
• one or more storage devices storing instructions that are operable, when executed by the one or more computers, to cause the one or more computers to perform operations comprising
• receiving, by a computer system, an identifier for at least a portion of a property and data identifying a location of a first device;
• identifying, by the computer system, a second device associated with the identifier for the at least portion of the property;
• based on the data identifying the location of the first device, determining, by the computer system, that the first device is located in a particular area;
• based on determining that the first device is located in the particular area, transmitting, by the computer system and to the second device, data indicating that the first device is located in the particular area;
• receiving, by the computer system and from the second device, an instruction to grant access to a user of the first device;
• and
• based on the instruction, providing, by the computer system, access through an access control point.

A non-transitory computer-readable medium storing software comprising instructions executable by one or more computers which, upon such execution, cause the one or more computers to perform operations comprising:

• receiving, by the one or more computers, an identifier for at least a portion of a property and data identifying a location of a first device;
• identifying, by the one or more computers, a second device associated with the identifier for the at least portion of the property;
• based on the data identifying the location of the first device, determining, by the one or more computers, that the first device is located in a particular area;
• based on determining that the first device is located in the particular area, transmitting, by the one or more computers and to the second device, data indicating that the first device is located in the particular area;
• receiving, by the one or more computers and from the second device, an instruction to grant access to a user of the first device;
• and
• based on the instruction, providing, by the one or more computers, access through an access control point.