The Grandstream DP722 is a DECT IP cordless phone that allows users to mobilize their VoIP network throughout any business, retail or residential environment.
It is compatible with Grandstream's DP750 and DP752 DECT VoIP base stations and offers a combination of mobility and excellent telephony technical qualities. Up to five DP722 handsets are supported on each base station, while each DP722 allows a range of up to 350 meters outdoors (with DP752) and 50 meters indoors with 20 hours of talk time and 250 hours of standby time.
It offers a robust set of telephony features including support for up to 10 SIP accounts per phone, full HD audio, 1.8-inch color display, 3.5mm headset jack, Push-to-Talk button, speakerphone, and plus. When paired with Grandstream's DECT Base Stations, the DP730 is a luxury phone that offers a powerful cordless DECT solution for users in businesses or homes.
Supports advanced telephony features, including call transfer, call forwarding, call waiting, do not disturb, message waiting for indication, multiple language commands, flexible dial plan, and more.
Characteristic:
DECT technology
Up to 5 telephones per base (not included, sold separately)
Up to 10 SIP accounts per system
Up to 10 lines per phone
DECT authentication and encryption technology to protect calls and accounts
3 person audio conference
Dedicated Push-to-Talk button; integrated proximity and acceleration sensors
HD Audio to maximize audio clarity, full duplex speakerphone
Range of up to 350 meters outdoors (with DP752) and 50 meters indoors
20 hours of talk time and 250 hours of standby time.
Yes, it should be possible to store any type of number. Also remember that you can use any of the 8 speed dial keys you can assign to the phone, probably usefull for emergencies.
This phone is just a handset for the Grandstream bases (DP750 / DP752 / DP755), it doesn't work on its own. Along with the base it becomes an IP cordless phone, you have to connect it to your internet router and then it needs to be programmed by your phone service provider, which could be your same internet provider or another company.
The Grandstream DP722 is an additional handset that works in conjunction with the DP750, DP752 or DP755 bases, it won't work on its own. As for compatibility you need to talk to your provider to confirm, in theory as long as you have the base it should work but your provider is the one that needs to do the configuration.