Grandstream GR-DP722HD Mid Tier DECT Handset The DP722 is an IP phone that mobilizes VoIP networks in a business, warehouse, retail store or residential setting. It works with Grandstream's DP750 and DP752 base stations, offering a blend of portability and superior telephony. Up to five DP722 handsets can be used with each base station, with an outdoor range of 350m with the DP752, 50m indoors, 20 hours talk time, and 250 hour standby. It boasts various sophisticated