Bring clear voice communication to the entry point with the Valcom VIP-172AL-ST IP DoorPhone/Intercom. This flush-mount sub station is designed for indoor and outdoor door communication where a compact footprint and network-based integration matter. It supports talkback operation through an IP-based network and is built to communicate with Valcom FXS units as well as SIP-based telephone systems. The 4.5 x 4.5 x 1.3 in enclosure keeps the unit discreet at the wall while still providing a purpose-built interface for access points, lobbies, and controlled entrances. At approximately 8.80 oz, it is light enough for straightforward installation, and the flush-mount design helps maintain a clean architectural finish. For teams standardizing on IP communications, the VIP-172AL-ST offers a focused alternative to larger intercom platforms. It is well suited to sites that need dependable door audio, simple network integration, and a professional appearance at the entrance. The included network interface, door plate, and relay block support a complete deployment package, while the 1-year warranty aligns with commercial use expectations.