The Viking K-1500P-D (desk) phone features a standard desk configuration with a built-in ringer. The K-1500P-D can be used on an analog PABX station port or standard C.O. line to receive calls. It can also be used with a dedicated ringdown circuit, such as Viking's DLE-200B, to provide cost effective point-to-point communications. If an automatic hot-line dialer is required, the K-1900D-2 (desk) hot-line phone are available.