The Yealink W90DM, is an IP multi-cell DECT Manager that works with the W90B Base Station for a complete DECT IP multi-cell phone system (W90). This DECT multi-cell system intends to create an extremely scalable and reliable solution for organisations of any size and any shape. The system supports up to 250 handsets and 250 simultaneous calls, which ensures one call in each handset, and allows you to get rid of the limited wireless signal coverage of only one base station.