Grandstream Networks DP750 Instruction Manual

Grandstream Networks, Inc.
DP750/DP720
DECT Cordless IP Phones
Administration Guide

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DP750/DP720 Administration Guide
Version 1.0.11.4
COPYRIGHT
©2019 Grandstream Networks, Inc. http://www.grandstream.com
All rights reserved. Information in this document is subject to change without notice. Reproduction or
transmittal of the entire or any part, in any form or by any means, electronic or print, for any purpose without
the express written permission of Grandstream Networks, Inc. is not permitted.
The latest electronic version of this guide is available for download here:
http://www.grandstream.com/support
Grandstream is a registered trademark and Grandstream logo is trademark of Grandstream Networks, Inc.
in the United States, Europe and other countries.
CAUTION
Changes or modifications to this product not expressly approved by Grandstream, or operation of this
product in any way other than as detailed by this guide, could void your manufacturer warranty.
WARNING
Please do not use a different power adaptor with devices as it may cause damage to the products and void
the manufacturer warranty.

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DP750/DP720 Administration Guide
Version 1.0.11.4
FCC Warning
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation. Any Changes or modifications not
expressly approved by the party responsible for compliance could void the user's authority to operate the
equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Exposure to Radio Frequency (RF) Signals
For Handset
This is a radio transmitter and receiver. It is designed and manufactured not to exceed the emission limits
for exposure to radio frequency (RF) energy set by the Federal Communications Commission (FCC) of the
U.S. Government. These limits are part of comprehensive guidelines and establish permitted levels of RF
energy for the general population. The guidelines are based on the safety standards previously set by both
U.S. and international standards bodies. These standards include a substantial safety margin designed to
assure the safety of all persons, regardless of age and health. This device and its antenna must not be
collocated or operating in conjunction with any other antenna or transmitter. This product has been shown
to be capable of compliance for localized specific absorption rate (SAR) for uncontrolled
environment/general population exposure limits specified in ANSI/IEEE Std. C95.1-1992 and had been
tested in accordance with the measurement procedures specified in FCC/OET Bulletin 65 Supplement C
(2001) and IEEE 1528.

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DP750/DP720 Administration Guide
Version 1.0.11.4
For Base
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance 20cm between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Operating Frequency Band (RF):
DECT: 1881.792 MHz - 1897.344 MHz (TX/RX)
Modulation Mode:
DECT: GFSK
Max. Of Transmit Power:
DP720
DP750
23.5 dBm
22.95 dBm

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DP750/DP720 Administration Guide
Version 1.0.11.4
GNU GPL INFORMATION
DP750 firmware contains third-party software licensed under the GNU General Public License (GPL).
Grandstream uses software under the specific terms of the GPL. Please see the GNU General Public
License (GPL) for the exact terms and conditions of the license.
Grandstream GNU GPL related source code can be downloaded from Grandstream web site from:
http://www.grandstream.com/support/faq/gnu-general-public-license/gnu-gpl-information-download

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DP750/DP720 Administration Guide
Version 1.0.11.4
Table of Contents
DOCUMENT PURPOSE ...............................................................................................12
CHANGE LOG..............................................................................................................13
Firmware Version 1.0.11.4 ...................................................................................................................13
Firmware Version 1.0.11.2 ...................................................................................................................13
Firmware Version 1.0.9.9 .....................................................................................................................13
Firmware Version 1.0.9.1 .....................................................................................................................13
Firmware Version 1.0.7.5 .....................................................................................................................13
Firmware Version 1.0.4.10 ...................................................................................................................14
Firmware Version 1.0.4.7 .....................................................................................................................14
Firmware Version 1.0.4.2 .....................................................................................................................14
Firmware Version 1.0.3.40 ...................................................................................................................14
Firmware Version 1.0.3.37 ...................................................................................................................14
Firmware Version 1.0.3.34 ...................................................................................................................15
Firmware Version 1.0.3.31 ...................................................................................................................15
Firmware Version 1.0.3.23 ...................................................................................................................15
Firmware Version 1.0.2.16 ...................................................................................................................16
Firmware Version 1.0.1.14 ...................................................................................................................16
Firmware Version 1.0.1.4 .....................................................................................................................16
Firmware Version 1.0.0.16 ...................................................................................................................17
GUI INTERFACE EXAMPLES......................................................................................18
WELCOME ...................................................................................................................19
PRODUCT OVERVIEW ................................................................................................20
Feature Highlights................................................................................................................................20
DP750 Technical Specifications...........................................................................................................21
DP720 Technical Specifications...........................................................................................................22
GETTING STARTED..................................................................................................... 24

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DP750/DP720 Administration Guide
Version 1.0.11.4
Equipment Packaging ..........................................................................................................................24
Connecting DP750...............................................................................................................................25
Connecting via AC power .............................................................................................................25
Connecting via PoE ......................................................................................................................25
Setting up DP720 handset ...................................................................................................................26
Battery Information .......................................................................................................................26
Setting up the Charge Station..............................................................................................................27
DP750 LED Patterns............................................................................................................................27
DP720 Handset Description ................................................................................................................28
DP720 Icons Description .....................................................................................................................29
DP720 Handset Menu..........................................................................................................................31
CONFIGURATION GUIDE............................................................................................37
Obtain DP750 Base Station IP Address via paired DP720..................................................................37
Configuration via Web Browser ...........................................................................................................38
Accessing the Web UI ..................................................................................................................38
Web GUI Languages ....................................................................................................................38
Icons Bar Shortcut ........................................................................................................................39
Saving the Configuration Changes...............................................................................................39
Web UI Access Level Management.....................................................................................................39
Changing User Level Password ...................................................................................................40
Changing Admin Level Password.................................................................................................40
Changing HTTP / HTTPS Web Access Port.................................................................................41
Web Configuration Definitions .............................................................................................................42
Status Page Definitions ................................................................................................................43
Profiles Page Definitions ..............................................................................................................46
DECT Page Definitions.................................................................................................................56
Settings Page Definitions .............................................................................................................59
Maintenance Page Definitions......................................................................................................62
Phonebook Page Definitions ........................................................................................................72
Change Base Station Admin PIN code ................................................................................................74

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DP750/DP720 Administration Guide
Version 1.0.11.4
Register DP720 Handset to DP750 Base Station ...............................................................................75
Using DP720 with Multiple DP750 Base Stations ...............................................................................76
Registering DP720 to an additional DP750 base station .............................................................76
Switching Between Different Base Stations .................................................................................77
Unregister the DP720 ..........................................................................................................................77
Locating a DP720 Handset from DP750 Base station.........................................................................78
Locate via DP750 Web UI ............................................................................................................78
Locate via DP750 Base station ....................................................................................................79
Register a SIP Account ........................................................................................................................79
Register Account via Web User Interface.....................................................................................79
Multiple Lines and Hunting Groups......................................................................................................82
Handset Line Settings...................................................................................................................82
Outgoing Default Line ...................................................................................................................83
Hunting Groups.............................................................................................................................83
Configuration via Keypad.....................................................................................................................86
Call Features........................................................................................................................................87
DP750 Phonebook Management.........................................................................................................88
Private Phonebook .......................................................................................................................88
Global Phonebook ........................................................................................................................90
Global Phonebook via XML ..........................................................................................................90
Global Phonebook via LDAP ........................................................................................................94
DP750 ASSOCIATION WITH DP760 DECT REPEATER .............................................95
Enabling Repeater Mode on DP750 ....................................................................................................95
DP760 DECT Repeater Association ....................................................................................................95
Auto Association ...........................................................................................................................96
Manual Association.......................................................................................................................97
Use DP750 Repeater Management to Associate DP760.............................................................98
DP760 DECT REPEATER DISSOCIATION FROM DP750 ........................................100
Using DP760 Web GUI ......................................................................................................................100

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DP750/DP720 Administration Guide
Version 1.0.11.4
Using Page Button .............................................................................................................................101
Using Repeater Management Mode on DP750.................................................................................101
UPGRADING AND PROVISIONING ..........................................................................102
DP750 Firmware Upgrade Procedure ...............................................................................................102
Upgrading via Local TFTP/HTTP Servers ..................................................................................103
Upgrading DP720 handset ................................................................................................................104
Using the LCD menu ..................................................................................................................104
Using the Web GUI.....................................................................................................................104
DP750/DP720 Provisioning ...............................................................................................................105
Configuration File Download ......................................................................................................105
Handset Provisioning..................................................................................................................106
RESTORE FACTORY DEFAULT SETTINGS .............................................................108
Resetting the DP750 Base Station ....................................................................................................108
Via Reset Button.........................................................................................................................108
Via Web GUI...............................................................................................................................108
Resetting the DP720 Handset ...........................................................................................................108
EXPERIENCING DP750/720 ...................................................................................... 110

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DP750/DP720 Administration Guide
Version 1.0.11.4
Table of Tables
Table 1: DP750 Features at a Glance.........................................................................................................20
Table 2: DP720 Features at a Glance.........................................................................................................20
Table 3: DP750 Technical Specifications ....................................................................................................21
Table 4: DP720 Technical Specifications ....................................................................................................22
Table 5: Equipment Packaging ...................................................................................................................24
Table 6: DP750 LED Patterns .....................................................................................................................27
Table 7: Keypad Keys Description ..............................................................................................................28
Table 8: DP720 Icons Description ...............................................................................................................29
Table 9: Status Page Definitions .................................................................................................................43
Table 10: Profiles Page Definitions .............................................................................................................46
Table 11: DECT Page Definitions................................................................................................................56
Table 12: Settings Page Definitions ............................................................................................................59
Table 13: Maintenance Page Definitions.....................................................................................................62
Table 14: Phonebook Page Definitions .......................................................................................................72
Table 15: Call Features ...............................................................................................................................87
Table of Figures
Figure 1: DP750 Package Content .............................................................................................................24
Figure 2: DP720 Package Content .............................................................................................................24
Figure 3: DP750 Back View ........................................................................................................................25
Figure 4: Connecting the Base station ........................................................................................................25
Figure 5: Setting up the DP720...................................................................................................................26
Figure 6: Setting up the charge station .......................................................................................................27
Figure 7: Handset Keys Description ...........................................................................................................28
Figure 8: DP720 Menu Structure ................................................................................................................32
Figure 9: DP750 Web GUI Language .........................................................................................................38
Figure 10: Icons Bar Shortcut .....................................................................................................................39
Figure 11: Icons Bar Description .................................................................................................................39
Figure 12: User Level Password .................................................................................................................40
Figure 13: Admin Level Password ..............................................................................................................41
Figure 14: Web Access Port........................................................................................................................42
Figure 15: Admin PIN Code ........................................................................................................................75
Figure 16: Registration Process..................................................................................................................76
Figure 17: Multiple Base Stations Registration ...........................................................................................76
Figure 18: Switching Between Base Stations .............................................................................................77
Figure 19: Unregister DP720 from DP750 web UI......................................................................................78

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DP750/DP720 Administration Guide
Version 1.0.11.4
Figure 20: Locate Handset via Web UI .......................................................................................................79
Figure 21: SIP Settings ...............................................................................................................................80
Figure 22: SIP Accounts Settings................................................................................................................81
Figure 23: Account Status ...........................................................................................................................81
Figure 24: Handset Line Settings................................................................................................................82
Figure 25: Account Status – Line Status.....................................................................................................83
Figure 26: Hunting Group configuration ......................................................................................................86
Figure 27: Hunting Group Status ................................................................................................................86
Figure 28: Private Phonebook Settings ......................................................................................................88
Figure 29: Handset Phonebook Settings ....................................................................................................89
Figure 30: Handset Phonebook Selection ..................................................................................................89
Figure 31: Global Phonebook XML Settings ...............................................................................................90
Figure 32: Automatic XML Phonebook Download ......................................................................................91
Figure 33: Manual XML Phonebook Managemen ......................................................................................91
Figure 34: Global Phonebook LDAP Settings .............................................................................................94
Figure 35: Enable Repeater Mode ..............................................................................................................95
Figure 36: Repeater Status – Associated (Auto Association) .....................................................................96
Figure 37: Repeater Status – Associated (Manual Association).................................................................97
Figure 38: Repeater Associated Status ......................................................................................................98
Figure 39: DECT Repeater Status on DP750 .............................................................................................99
Figure 40: DECT Repeater Status on DP750 ...........................................................................................100
Figure 41: DECT Repeater Status on DP750 ...........................................................................................101
Figure 42: Firmware Upgrade Page..........................................................................................................103
Figure 43: Handset Firmware Upgrade.....................................................................................................104
Figure 44: Provisioning Feature ................................................................................................................107

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DP750/DP720 Administration Guide
Version 1.0.11.4
DOCUMENT PURPOSE
This document describes how to configure DP750 Base Station features via DP720 Handset LCD menu
and Web GUI menu. The intended audiences of this document are VOIP administrators. To learn the basic
functions of DP750/DP720, please visit http://www.grandstream.com/support to download the latest
“DP750/DP720 User Guide”.
This guide covers following topics:
Product Overview
Getting Started
Configuration Guide
DP750 Association with DP760 Repeater
DP760 DECT Repeater Dissociation from DP750
Upgrading and provisioning
Restore factory default settings.

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DP750/DP720 Administration Guide
Version 1.0.11.4
CHANGE LOG
This section documents significant changes from previous firmware versions. Only major new features or
major document updates are listed here. Minor updates for corrections or editing are not documented here.
Firmware Version 1.0.11.4
No major change.
Firmware Version 1.0.11.2
Added DP75X Callee Codec Negotiation Priority option. [Callee Codec Negotiation Priority]
Added Chile time zone. [Time Zone]
Added support to bypass the dial plan check when redial / call back phone number via call
history.[Dial Plan bypass]
Changed SIP account name length from 14 characters to 256. [Name]
Firmware Version 1.0.9.9
Added DP75X Trusted CA Certificate option for HTTPS/FTPS. [Security]
Added support to configure customized time zone and daylight-saving time (DST) on the web UI.
[Custom Time Zone Settings]
Increased DP75X web UI voice mail user ID character length to 30. [Voice Mail Access Number]
Increased SIP Certificate length limitation from 2048 characters to 8192. [SIP TLS Certificate]
Added support to configure Voice Mail access number on DP75X web UI. [Voice Mail Access Number]
Added support for FTP/FTPS User Name/Password for firmware upgrade and provisioning.
[UPGRADING AND PROVISIONING]
Firmware Version 1.0.9.1
Added option to enable or disable Session Timer for DP75x. [Enable Session Timer]
Added support of EXTRA DEBUG level Syslog for DP75X. [Syslog Level]
Add ability to manually configure date and time on the base Web GUI. [Manual Time Settings]
Added support to enable or disable “Allow Unsolicited REFER” option for DP750. [Allow Unsolicited
REFER]
Change DP720 Preferences option “Mute as DND” default to “Enabled” from “Disabled” to make
enabling DND more convenient.[Mute as DND]
Added support for Intercom feature. [Shortcut]
Firmware Version 1.0.7.5
Changed DP720 GUI to new design with new style.
Added support for Push-to-Talk for DP720.[Shortcut] [DECT PTT Silence Timer][PTT]

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DP750/DP720 Administration Guide
Version 1.0.11.4
Added support to work with GDS3710/GDS3705 to remote open door with “Open” button. [External
Service]
Added support for “Music on Hold URI” for DP750. [Music On Hold URI]
Disable DP720 auto upgrade to 1.0.7.X or above.
Added support for new format of P values.[DP750/DP720 Provisioning]
Firmware Version 1.0.4.10
Added option to add MAC address to User Agent. [Use MAC Header]
Firmware Version 1.0.4.7
Added the ability to display Account Name only. [SIP Account Display
Added support to provision config file by model. [DP750/DP720 Provisioning]
Added support TLS protocol for Syslog. [Syslog Protocol]
Added SRTP icon on handset UI. [Table 8: DP720 Icons Description]
Updated German translations for both DP750 Web UI and DP720 handset UI.
Firmware Version 1.0.4.2
Added support for CTI (Computer-Telephony Integration) feature. [CTI Guide]
Improve the support to customize the Syslog port. [Syslog port]
Added support for DP720 to use Audio Loopback test when it is not registered to the base station.
[Audio Loopback
Play keypad tone during the call if it is enabled. [Audio]
Firmware Version 1.0.3.40
Added support to allow configure prefix for User-Agent in SIP header. [User-Agent Prefix]
Increased the length of Authenticate ID, SIP User ID, Password from 32 to 128.
Added support for SIP OPTIONS Keep Alive. [Enable OPTIONS Keep Alive]
Added support for automatic upgrade and provisioning be triggered at a random time in every certain
day. [Automatic Upgrade]
Added OpenVPN feature. [OpenVPN]
Added the option to set Date and Time Display Format via the web GUI and Provisioning. [Time Format]
Firmware Version 1.0.3.37
Added support for DP750 to configure device with custom certificate signed by custom CA certificate.
[Device Custom Certificate]
Added support for DP750 to customize the Syslog port. [Syslog port]
Reset DP760 repeater region to AUTO when pressing page and reset button more than 2s. [DP750
ASSOCIATION WITH DP760 DECT REPEATER]

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DP750/DP720 Administration Guide
Version 1.0.11.4
Firmware Version 1.0.3.34
No major changes.
Firmware Version 1.0.3.31
Added language support for Slovakian, Swedish. [Web GUI Languages]
Change NTP Server default value to pool.ntp.org. [NTP Server]
Firmware Version 1.0.3.23
Added Email address to core debug page. [Email Address]
Implemented Handset Provisioning feature. Add warning information to SIP Account Settings and Line
Settings Pages if Handset Provisioning enabled. [Handset Provisioning]
Added support for more languages and updated translation. [Multi-language]
Implemented DP750 Debug Tools that allow generate and submit debug files to Grandstream debug
server directly. [Debug Tools]
Add handset notification for base core dump files. [Handset Notification]
Added web UI support to DP750 for repeater management such as display/link/unlink, etc. [DECT
Repeater Status]
Added backup configuration feature. [Backup Configuration]
Added UPnP discovery feature. [UPnP Discovery Settings]
Added support for more languages and updated translation. [Web GUI Languages]
Added DP750/DP720 product resource link to DP750 web UI. [Support Documentation]
Added support for page refresh by Refresh Page button, and added the icons of Refresh Page, Open
Subscription and Page All button to icon bar. [Icons Bar Shortcut]
Added support to auto-refresh on DECT status web UI. [DECT Base Status]
Added the ability to customize DP720 ringtones. [Custom Ringtone]
Enhanced factory reset feature by adding options to select Full RESET, RESET without deleting
handsets subscription or RESET only deleting handset subscription. [Reset Type]
Added capability to rename the profile. [Profile Name]
Added support for Distinctive Ringtone based on a customized SIP Alert-info header. [Match Incoming
Caller ID]
Removed “Disable Call Waiting Tone” from Profile page and add it under DECT Handset Settings
[Disable Call Waiting Tone]
Added support to upload TXT configuration file. [Upload Device Config]
Added a new tab named “Support” under Maintenance page for support document, configuration
support and debug tools. [Support]
Added DP750 the ability to send SIP INFO and RFC2833 at same time. [Send DTMF]
Added force reboot button to web UI to force reboot DP750 in factory reset page under maintenance
section. [Force Reboot]

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DP750/DP720 Administration Guide
Version 1.0.11.4
Firmware Version 1.0.2.16
Added TR-069 CPE support. [TR-069]
Added Repeater mode support at DECT General Settings. [Enable Repeater Mode]
Added support of plus button ‘+’ when dialing. [Dial Plan]
Added “Verify host when using HTTPS” option at Maintenance Firmware Upgrade. [Verify host when
using HTTPS]
Added status displays as “Normal” when core dump list is empty.
Added “Access Control Lists” at Maintenance Web/SSH Access. [Access Control Lists]
Added support for HTTPS web access. [HTTPS Web Port][HTTP / HTTPS Web Port ]
Changed menu “Line Status” in Call Settings to “Lines”.
Improved DNS Settings page. [Network Settings – Basic Settings]
Re-arranged the Setting Status menu. [DP720 Handset Menu]
Add documents and drilling templates to web GUI support page. [Support]
Web UI Enhancements
Improved support for Czech, Dutch, German, Hebrew, Japanese, Korean, Turkish languages.
Firmware Version 1.0.1.14
Removed IVR (Interactive Voice Response).
Hide the content of “Advanced Settings” page when accessing the web GUI with normal user. [Web UI
Access Level Management]
Added voice mail, missed calls, headset icons. [Table 8: DP720 Icons Description]
Moved Download Config options to Provisioning page. [Provisioning]
Added Dialing box controls for off-hook dialing on DECT General Settings. [General Settings]
Changed EU standard ring tog tone same as US. [Ring Tones]
Added support for configurable system ring tone on Settings Ring Tones. [Ring Tones]
Added web UI support for packet capture on Maintenance Packet Capture [Packet Capture].
Removed "Internal call" from audio ring tone menu.
Removed “Intercom” feature completely.
Firmware Version 1.0.1.4
Added dialing box controls for off-hook dialing on Profile Call Settings.
Added Reset handset name to default if handset is unsubscribed.
Added DHCPv4 Option 120 on Maintenance Provisioning. [Provisioning]
Move Network Settings and Phonebook tabs. [Network Settings] [Phonebook Page Definitions]
Added handset version (firmware) on Status System Status.
Web UI Status Enhancements.
Changed location of handset firmware upload/delete.
Improved web UI Account Status page.
Added processing of DHCP option 160 by DHCP client.
Added support to receive a handset proprietary message when handset power off.
Added "Off-Hook Auto-Dial " option on DECT General Settings. [Off-hook Auto-dial]

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DP750/DP720 Administration Guide
Version 1.0.11.4
Added support to upload handset firmware from web UI. [Handset Firmware]
Added delete button for uploaded handset firmware via web UI. [Handset Firmware]
Firmware Version 1.0.0.16
This is the initial version for DP750/DP720.

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DP750/DP720 Administration Guide
Version 1.0.11.4
GUI INTERFACE EXAMPLES
http://www.grandstream.com/sites/default/files/Resources/dp750_web_gui.zip
1. Screenshot of Login Page
2. Screenshots of Status Pages
3. Screenshots of Profiles Pages
4. Screenshots of DECT Pages
5. Screenshots of Settings Pages
6. Screenshots of Maintenance Pages
7. Screenshots of Phonebook Pages

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DP750/DP720 Administration Guide
Version 1.0.11.4
WELCOME
Thank you for purchasing Grandstream DP750 DECT IP Base Station and DP720 DECT Handset.
The DP750 is a powerful DECT VoIP base station that pairs with up to 5 of Grandstream’s DP720 DECT
handsets to offer mobility to business and residential users. It supports a range of 300 meters outdoors and
50 meters indoors to give users the freedom to move around their work or home space, delivering efficient
flexibility. This DECT VoIP base station supports up to 10 SIP accounts and 5 concurrent calls while also
offering 3-way voice conferencing, full HD audio and integrated PoE. A shared SIP account on all handsets
will add seamless unified features that gives users the ability to answer all calls regardless of location in
real-time. The DP750 supports a variety of auto-provisioning methods and TLS/SRTP/ HTTPS encryption
security. When paired with Grandstream’s DP720, the DP750 offers a powerful DECT VoIP base station
that allows any business or residential user to create a cordless VoIP solution.
The DP720 is a DECT cordless VoIP phone that allows users to mobilize their VoIP network throughout any
business, warehouse, retail store and residential environment. It is supported by Grandstream’s DP750
DECT VoIP base station and delivers a combination of mobility and top-notch telephony performance. Up
to five DP720 handsets are supported on each DP750 while each DP720 supports a range of up to 300
meters outdoors and 50 meters indoors from the base station. The DP720 touts a suite of top-notch
telephony features including support for up to 10 SIP accounts per handset, full HD audio, a 3.5mm headset
jack, multi-language support, a speakerphone and more. When paired with Grandstream’s DP750 DECT
Base Station, the DP720 offers a powerful DECT VoIP handset that allows any business or residential user
to create a cordless VoIP solution.

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DP750/DP720 Administration Guide
Version 1.0.11.4
PRODUCT OVERVIEW
Feature Highlights
The following tables contain the major features of the DP750 / DP720:
Table 1: DP750 Features at a Glance
Table 2: DP720 Features at a Glance
DP750
5 handsets.
10 accounts.
10 Lines.
5 Concurrent calls.
PoE power support.
300m range outdoor / 50m range indoor.
DP720
DECT Cordless HD.
1.8 inch (128x160) TFT color LCD.
250 hours standby / 20 hours talk time.
15 languages embedded.
10 accounts.
10 lines.
5 ring modes.