Method and system for untethered two-way voice communication for an alarm system

A method comprising the steps of:

• associating a smartphone with an alarm system for a premises, wherein an entity provides cellular services for the smartphone;
• in response to receiving a signal from the alarm system indicating an alarm condition for the premises, processing information provided by the entity about a location of the smartphone to determine whether the smartphone is at the premises;
• if the smartphone is determined to be at the premises, then automatically causing the smartphone to open a voice channel with another entity that is remote from the premises by sending a cellular signal to the smartphone;
• and
• if the smartphone is determined to be off of the premises, then automatically opening the voice channel between the another entity and an alarm panel of the alarm system.

A method comprising the steps of:

• receiving input from a user about whether a smartphone associated with the user is disposed at a premises that is under protection by an alarm system comprising an alarm panel;
• in response to receiving a signal indicating that the premises is under an alarm condition, making a determination about whether the smartphone is disposed at the premises based on the received input;
• if the determination indicates that the smartphone is disposed at the premises, then opening a two-way voice session between the smartphone and an entity that is offsite of the premises;
• and
• if the determination indicates that the smartphone is not disposed at the premises, then opening the two-way voice session between the entity and a microphone and speaker of the alarm panel.