DECT VoIP base station with a long range
The DP755 is a powerful DECT VoIP base station that pairs with 10 Grandstream DP series DECT handsets and provides user mobility. Indoors, its range reaches 50 m, and outdoors — 400 m for DP730 phones and 350 m for DP722/DP720 phones. This way users can move freely at home or at work while staying connected. Up to 10 handsets and 20 SIP accounts can be connected to this base station.
It is equipped with a PoE module, has a clear sound and supports audio conferences of up to three participants. All handsets can be connected to a single SIP account and receive all calls regardless of location. The DP755 supports several automatic configuration methods and TLS/SRTP/HTTPS encryption. When paired with Grandstream DP720, DP722 or DP730 handsets, this base station turns into a powerful wireless DECT system that is suitable for home and office use.
Radio interface
Communication standards: DECT
Frequency ranges:
1880-1900 MHz (Europe), 1920-1930 MHz (USA),
1910-1920 MHz (Brazil), 1786-1792 MHz (Korea),
1893-1906 MHz (Japan), 1880-1895 MHz (Taiwan)
Number of channels: 10 (Europe), 5 (USA, Brazil, Japan), 3 (Korea),
8 (Taiwan)
Outdoor coverage area: up to 400 m (DP730), up to 350 m (DP722/DP720)
Indoor coverage area: up to 50 m
External elements
Three LED indicators: power, network,
paging/pairing button DECT
One 10/100 Mbps Ethernet port with auto-negotiation and PoE
Protocols/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
Speech codecs
G.711μ/a-law, G.723.1, G.729A/B, G.726-32, iLBC, G.722, OPUS, G.722.2/AMR-WB
(spec.), in-band and out-of-band DTMF (in RFC2833 audio signal, SIP INFO),
VAD, CNG, PLC, AJB
Telephony functions
Hold, transfer, forwarding, conference with three participants,
downloadable phonebook (XML, LDAP, up to 3000 entries), call waiting
, call log (up to 1500 entries), answering machine, flexible configuration of subscriber
groups, switching to a backup server in case of failure
Quality of service
Layer 2 QoS (802.1Q, 802.1P) and Layer 3 QoS (ToS, DiffServ, MPLS)
Safety
User and administrator level access control
, MD5 and MD5-sess authentication, 256-bit AES encryption configuration file,
TLS, SRTP, HTTPS, 802.1x-based media access control,
DECT authentication and encryption
Multiple languages
English, Czech, German, Spanish, French, Hebrew, Italian,
Dutch, Polish, Portuguese, Russian, Turkish, Arabic, Chinese
Simplified, Chinese Traditional, Japanese, Korean, Slovak,
Serbian
Update/Setup
Firmware update via TFTP/HTTP/HTTPS or via local download
HTTP, bulk configuration using TR-069 or an XML configuration file
with AES encryption
Multiple SIP accounts
Up to 20 separate SIP accounts per system
Each handset can be linked to 20 SIP accounts
Each SIP account can be linked to any handset
Call Groups
Extensive options for configuring multiple handsets in one SIP account.
Parallel mode: all phones ring at the same time; when one
phone answers, new calls can be made from the rest.
Handset mode: Multiple handsets are linked to one account, but all incoming
calls are routed to one handset.
Nutrition and
energy efficiency
Universal power supply: Input: 100-240 VAC, 50/60 Hz;
Output: DC 5V, 1 A;
Micro-USB connector;
PoE: IEEE802.3af, Class 1; 0.44–3.84 W
Package Contents Basic Module, Universal Power supply, Ethernet Cable, Quick
Start Guide, GLP license
Dimensions (H × W × D)
140,31 x 64,98 x 105 mm
Weight
Base module: 140 g; universal power supply: 50 g; package: 370 g
Temperature and humidity
Operation: -10...+45 °C; storage: -20...+60 °C Humidity: 10-90 %
(non-condensing)
Accordance
FCC: FCC, Part 15B; FCC, Part 15D; MPE; FCC ID
CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 60950-1; EN 301 489-1/-6;
EN 301 406; EN 50385; RED NB certification
RCM: AS/NZS 32; AS/NZS 60950.1 ANATEL: ANATEL, EAC, UL (adapter)
