•Up to 20 SIP accounts per system; up to 20 lines per handset
•DECT authentication & encryption technology to protect calls & account
•3-way audio conferencing for easy conference calls
•Supports Push-to-Talk
•Automated provisioning options include TR-069 and XML config files
•Use with Grandstream’s UCM series of IP PBXs for Zero Config provisioning
•HD audio to maximize audio quality and clarity; full duplex speakerphone
•Supports advanced telephony features, including call transfer, call forward, call-waiting, do not disturb, message waiting indication, multi-language prompts, flexible dial plan and more

•Telephony Standards: DECT
•Number of Channels: 5
•Range: Up to 400 meters outdoors with DP730 (350m with DP722/DP720) and 50 meters indoors
•LED indicators: Power, Network, DECT
•Button: Pairing/Paging
•Ethernet Port: 10/100 Mbps auto-sensing with integrated PoE
•Protocol/Standards: SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS (A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP, IPv6
•Voice Codecs: G.711μ/a-law, G.723.1, G.729A/B, G.726-32, iLBC, G.722, OPUS, G.722.2/AMR-WB (special order), in-band and out-of-band DTMF (in audio, RFC2833, SIP INFO), VAD, CNG, PLC, AJB
•Telephony Features: Hold, transfer, forward, 3-way conference, downloadable phonebook (XML, LDAP, up to 3000 entries), call waiting, call log (up to 1500 records), auto answer, flexible dial plan, server redundancy and fail-over
•QoS: Layer 2 QoS (802.1Q, 802.1P) and Layer 3 QoS (ToS, DiffServ, MPLS)
•Security: User and administrator level access control, MD5 and MD5-sess based authentication, 256-bit AES encrypted configuration file, TLS, SRTP, HTTPS, 802.1x media access control, DECT authentication & encryption
•Operating Environment: Temperature -10°C to 45°C (14°F to 113°F); Humidity 10% to 90% non-condensing

•1 x Base Unit
•1 x Universal power supply
•1 x Ethernet cable
•Quick Start Guide
•GPL