Panasonic's Doorphone system allows you to speak with gates, doors, and remote buildings. Any phone in the system can answer the intercom and by pressing a button on the keypad can open a relay that can be used to unlock a door open a gate, etc...
2-way conversation at front gate or door Can be mounted on any flat surface, or over an electrical junction box Requires one pair of wires connected to the control unit Most of the systems require an add-on card for the doorphone system to work.
These cards are: KX-T206: None KX-TD208: None KX-TA308 = KX-TA30860 KX-TEA308 = KX-TE82460 KX-TES824 = KX-TE82460 KX-TD612 = KX-TD61260 KX-TD816 = KX-TD160 KX-TD1232 = KX-TD160 KX-TDA15 = KX-TDA3161 KX-TDA30 = KX-TDA3161 KX-TDA100 = KX-TDA0161 KX-TDA200 = KX-TDA0161