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Grandstream Networks DP720 User Manual
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Grandstream Networks DP720 User Manual

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Grandstream Networks, Inc.
DECT Handsets
User Guide

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Summary of Contents for Grandstream Networks DP720

  • Page 1 Grandstream Networks, Inc. DECT Handsets User Guide...

  • Page 2: Product Overview

    The DP720 is a DECT cordless VoIP phone offering mobility and top telephony performance, compatible with Grandstream’s DP750, DP752, and DP755 DECT VoIP base stations. Each base station supports up to 10 DP720 handsets, with a range of 300 meters outdoors and 50 meters indoors. Features include support for up to 20 SIP accounts per handset, full HD audio, 1.8- inch color display, a 3.5mm headset jack, push-to-talk, and speakerphone, making it an ideal cordless VoIP solution for...
  • Page 3 ● 2 concurrent calls. ● 9 ringtones. DP720 DP720 Features at a Glance DP725 Technical Specifications The following table resumes all the technical specifications including the protocols/standards supported, voice codecs, telephony features, languages, and upgrade/provisioning settings for the DP725 handset:...
  • Page 4 down) and 1 Push-to-Talk key, 3-color MWI LED 3.5mm headset jack Removable belt clip Type C USB port for alternative charging and non-battery operation Protocols/Standards Hearing Aid Compatibility (HAC) compliant G.722 codec for HD audio and G.726 codec for narrow band audio (G.711μ/a-law, G.723.1, G.729A/B, iLBC and OPUS are supported via companion DECT base station, Voice Codecs AEC, AGC, Ambient noise reduction on handset mic, advanced noise suppression for...
  • Page 5 Range: up to 400 meters outdoor and 50 meters indoor   2.4 inch (240×320) color TFT LCD 27 keys including 3 soft keys, 5 navigation/ menu keys, 4 dedicated function keys for SEND, POWER/END, SPEAKERPHONE, MUTE, 3 side keys including 2 volume (up and down) and 1 Push-to-Talk key 3-color MWI LED Peripherals...
  • Page 6 DP722 Technical Specifications The following table resumes all the technical specifications including the protocols/standards supported, voice codecs, telephony features, languages, and upgrade/provisioning settings for the DP722 handset: Telephony standards: DECT Frequency bands: ● 1880 – 1900 MHz (Europe), 1920 – 1930 MHz (US) ●...

  • Page 7: Dp720 Technical Specifications

    DP722 Technical Specifications DP720 Technical Specifications The following table resumes all the technical specifications including the protocols/standards supported, voice codecs, telephony features, languages, and upgrade/provisioning settings for the DP720 handset: Telephony standards: DECT Frequency bands: 1880 – 1900 MHz (Europe), 1920 – 1930 MHz (US) 1910 –...

  • Page 8: Getting Started

    60ºC (-4 to 140ºF); Humidity: 10% to 90% non-condensing Compliance FCC, CE, RCM, IC DP720 Technical Specifications GETTING STARTED This chapter provides basic installation instructions including the list of the packaging contents and also information for obtaining the best performance with the DECT Cordless HD Handsets.
  • Page 9 ● 1 Charging station DP722 ● 1 Handset Belt ● 2 Rechargeable batteries ● 1 Quick Installation Guide DP722 Package Content DP720 ● 1 Handset unit ● 1 Universal power supply 5V ● 1 Charging station DP722 ● 1 Handset Belt ●...

  • Page 10: Connecting Via Ac Power

    DP720 Package Content Note Check the package before installation. If you find anything missing, contact your system administrator. Connecting Base Station To set up the DP75x DECT Cordless VoIP Base Station, please follow the steps below: DP755/DP752 Back View DP750 Back view You have two options for power and network connection of the base station: AC power or Power over Ethernet (PoE).
  • Page 11 Please follow the below steps to insert batteries into the Handsets: Open the battery compartment cover. 1. For DP730/DP725: Inset the Li-ion battery with the electrodes in the bottom left corner. 2. For DP722/DP720: Insert AAA batteries with the correct polarity (+ / -). Close the battery compartment cover. Note Please charge the batteries fully before using the Handsets for the first time.
  • Page 12 DP730 Battery Installation DP722 DP722 Battery Installation DP720...

  • Page 13: Battery Information

    DP720 Battery installation Battery Information DP722 Batteries DP730 battery DP725 battery DP720 battery Speci cations speci cations speci cations speci cations ● Technology: Nickel Metal ● Technology: Nickel Metal Hydride (Ni-MH) ● Technology: Li-ion ● Technology: Li-ion Hydride (Ni-MH) ● Size: AAA ●...

  • Page 14: Setting Up The Charge Station

    Setting up the Charge Station Please refer to the following steps for setting up the charge station and charging the Handsets: 1. Connect the DC plug on the power adapter to the micro-USB or Type-C connector on the charge station. 2.
  • Page 15 Indicates the status of the DECT handset registration: ● Solid ON: Handset registered to thebase. ● Fast Blinking (0.25s ON/0.25s OFF): Paging handset. ● Blinking (0.5s ON/0.5s OFF): Pairing mode. DP750 The DP750 has 5 LED lights on it. Please see in the following table the meaning of each light. DP750 Led Patterns Status Indicates power ON/OFF...
  • Page 16 DP722 Keys Description Description Earphone Delivers audio output. Red: Charging. Green: Charge completed. LED Indication Blinking: Missed call(s) or Voice Mail received. Correspond to functions displayed on the LCD. These Left and right softkeys functions change depending on the current context. Shows call information, handset status icons, prompt LCD display messages, etc.
  • Page 17 Provides the digits, letters, and special characters in Alphanumeric Keypad context-sensitive applications. For the + sign, press and hold key 0. Locks keypad against unintentional entries when keep pressing #. Press and hold the # / Lock key # key for approximately 2 seconds to lock the keys. Press Unlock Softkey and then # to unlock the keys.
  • Page 18 Press and hold the # / Lock key # key for approximately 2 seconds to lock the keys. Press Unlock Softkey and then # to unlock the keys. Microphone Picks up audio earpiece and hands-free calls. DP730 Keys Description DP720...
  • Page 19 DP720 Handset Keys Description Red: Charging. Green: Charge completed. Power and Charging Indication Light Blinking: Missed call(s) or Voice Mail received. Earphone Delivers audio output. Correspond to functions displayed on the LCD. These Left and right softkeys functions change depending on the current context.
  • Page 20 Mute key Activates or deactivates the mute feature. Microphone Picks up audio earpiece and hands-free calls. DP720 Handset Keys Description DP725 DP725 Handset Keys Description Red: Charging Green: Charge completed LED Indicator Blinking green: Missed call(s) or Voice Mail received...
  • Page 21 Initiates a call or dials the number entered. It can also Off-hook /Dial key bring the handset into dialing mode from the home screen. 4 Arrow key combination (Up, Down, Allows the user to navigate through the menu options Left, Right) and settings on the LCD screen.
  • Page 22 Battery status Not equipped with a battery Battery status Battery empty Battery status Battery low Battery status Battery normal Battery status Battery full Battery status Charging Signal status Not subscribed Signal status Not in range Signal status Signal very low Signal status Signal low Signal status...
  • Page 23 Ringtone status OFF – Ringtone off (Silent mode) ON – Ringtone on Keypad Lock status OFF – Keypad unlock ON – Keypad locked DND Status. OFF – Do Not Disturb disabled ON – Do Not Disturb enabled Call waiting Information Account not registered Account Registered Error message...
  • Page 24 Call Features Status Settings Handsets Icon Descriptions DP Handsets Menu The Handsets has an easy-to-use menu structure. Every menu opens a list of options. To open the main menu, press “Menu” (left softkey) when the Handsets is on and in standby mode. Press the Arrow keys to navigate to the menu option you require. Then press “Select”...
  • Page 25 Note: Private/Global Phonebooks will be merged on the handset. Display the call history: 1. Missed Calls. 2. Accepted Calls. Call History 3. Outgoing Calls. 4. All Calls. Note: You can add contacts to Shared Contacts directly from call logs. ● Register: Register your handset to base station. Registration ●...

  • Page 26: Basic Operations

    Select a key [2], [3], [4], [5], [6], [7], [8] or [9] and press OK button. Select “Edit” to manually specify the destination number or select “From Contacts” to select a contact as speed dial destination. ● Do Not Disturb: Enable/disable do not disturb mode on the phone. ●...

  • Page 27: Setup Wizard

    Setup Wizard The setup wizard shows at first access to DP Handset or factory reset allowing users to configure handset language and date/time. Users can quit at any time by pressing “Skip” (left softkey). Register DP Handsets to DP Base Station 1.

  • Page 28: Switching Between Different Base Stations

    Multiple Base Stations Registration Switching Between Different Base Stations 1. Press “Menu” (left softkey or the selection key) to bring up the operation menu. 2. Use arrow keys to reach Registration. 3. Navigate to Select Base using the arrow keys. 4.

  • Page 29: Setting The Key Lock

    Unregister DP Handset from DP75x web UI Setting the Key Lock You can lock the keypad against unintentional entries. It is, however, still possible to pick up incoming calls even with the keypad locked. To enable the Keypad Lock 1. Press the Pound key “#” and hold for approximately 2 seconds.

  • Page 30: Checking System Status

    Locate Handsets via Web UI Locate via DP Base station 1. On the DP75x Base station front side, press Radio/Page button. 2. All registered Handsets will receive a Paging call. 3. Once located, you can end the paging calling by pressing any key on the Handsets or by pressing again Radio/Page button.

  • Page 31: Basic Network Settings

    International Portable Equipment Identifier. IPEI Unique “serial number” for DECT handsets. DP Handset Info Description To check the handset status 1. Press Menu to bring up the operation menu. 2. Use arrow keys to reach the Status menu , then select Handset Status. To check the Base Status 1.

  • Page 32: Return To Idle Screen

    Change Menu and LCD Timeout 1. Press Menu to bring up the operation menu. 2. Use arrow keys to reach Settings 3. Navigate to Display, and then press “Select” (left softkey). 4. Set desired time in seconds for Backlight timeout and for Menu timeout. Available value: 15 seconds, 30 seconds, 60 seconds or disabled.
  • Page 33 SIP Settings 5. Go to DECT �� ACCOUNT ASSIGNEMENT 6. Configure your SIP details in the desired account: Ringing Mode: Select the corresponding Ringing mode of the assigned account, which handset will ring when extension 1070 is called, selecting parallel will mean all selected handsets will be ringing at the same time. 7.

  • Page 34: Phone Settings

    Account registered PHONE SETTINGS This chapter will help you with the instructions for configuring and changing the settings of your DP Handset. Editing the Handset Name The procedure to change the handset name is as follows: Using DP Handsets: 1. Press Menu to bring up the operation menu. 2.

  • Page 35: Changing The Base Pin Code

    Edit Handsets Name from DP75x Note Handset firmware can NOT downgrade to 1.0.19.15 or below. Changing the Base PIN Code Users can change their code PIN by following the steps below: Using DP Handsets: 1. Press Menu to bring up the operation menu. 2.

  • Page 36: Selecting Phone Language

    Changing Admin Base PIN Code from DP75x Selecting Phone Language The DP Handset supports displaying texts in different languages. The handsets support 20 languages (see the table of the technical specifications). The default language of the handsets is English. You can change the language according to your requirements.
  • Page 37 1. Press Menu to bring up the operation menu. 2. Use arrow keys to reach Settings 3. Navigate to select Audio (For DP722/DP725/DP720) and Audio & Vibration (for DP730) �� Volume. 4. Press the left and right arrow keys to change repeatedly and set the desired volume.

  • Page 38: Advisory Tones

    Calls Ringtones Advisory Tones Advisory tones are acoustic signals, which inform you of different actions and states on your handsets. The following advisory tones can be configured independently of each other: Keypad tone: it’s played when a user presses any key of the keypad (even during calls). Confirmation: it’s played when a user saves settings or places the handsets in the charger cradle.
  • Page 39 Generating Custom Ringtone (Windows) Note Currently only 16-bit linear PCM audio is supported for .wav files. The sampling rate should be automatically detected and the audio will automatically be down-sampled to 8kHz. Stereo channels are also detected and mixed to produce mono output. .pcm files should be pre-formatted to 16-bit 8kHz mono format.

  • Page 40: Date And Time

    Date and Time On the DP Handset, the Date and time are displayed on the idle screen and it obtains the date and time from the Simple Network Time Protocol (SNTP) server by default. If your handsets cannot obtain the date and time from the SNTP server, you need to configure the date and time manually.

  • Page 41: Factory Functions

    DP730 Gestures – Facedown Hangup Close-to-Ear Backlight DP730 Gestures – Close-to-Ear Backlight Factory Functions The factory functions include the following diagnostic options: Keypad Diagnostic (on DP730) / Diagnostic Mode (on DP722) Audio loopback LCD on / off LCD diagnostic System Monitoring Vibration (DP730 only) Acceleration Sensor (DP730 only) Proximity sensor (DP730 only)
  • Page 42 4. LCD Diagnostic: Enter this option and press the Left/Right arrow key to do LCD Diagnostic (you will notice that the color of the LCD will be changing). Press the right softkey to quit. 5. System Monitoring: Displays RSSI, battery voltage, and RPN information. 6.
  • Page 43 Firmware Upgrade Reboot DP Base Station 1. Press Menu to bring up the operation menu. 2. Use arrow keys to reach Settings 3. Navigate to select Settings �� System Settings and choose Reboot Base. 4. Enter the Base PIN code (by default the PIN code is: 0000). 5.

  • Page 44: Call Operations

    4. The LCD screen will display a prompt message to confirm restoring factory settings, press “Yes” (left softkey) to confirm, and then the handsets will reboot to apply the default settings or press “No” (right softkey) to cancel. Resetting the Base Station CALL OPERATIONS Outgoing Default Line When a Handset is configured with more than one line, users can change the default outgoing line on the DP Handset...

  • Page 45: Placing Calls

    Outgoing Default Line Placing calls To place calls, you can use the following mode: Earpiece mode: pressing the off-hook key to dial out. Speakerphone mode: Press the speakerphone key to dial out. Headset mode: Press the off-hook key to dial out using a connected headset. During the call, you can switch the call mode by pressing the corresponding keys or connecting a headset.

  • Page 46: Dialing From Call History

    4. To terminate the call, press the Hang-Up key During the call, you can switch the call mode by pressing the corresponding keys and cancel the dialing operation by pressing the on-hook key. During the call conversations, you can press the left and right navigation keys to adjust the volume. The call duration is displayed on the LCD screen while the call is in progress and the call summary will be displayed once the call is terminated.

  • Page 47: Answering Calls

    Shortcut Setting Answering Calls When receiving an incoming call, you can answer the call using the following steps: Earpiece mode: Press Dial Key to pick up the call, or “Accept” softkey (left softkey). Speakerphone mode: Press Speaker Key to pick up the call. Headset mode: Press Dial Key to pick up the call, or the “Accept”...

  • Page 48: Ending Calls

    Users can enable the Off-Cradle Pickup feature to automatically answer incoming calls after picking up DP Handsets from its cradle. Incoming calls will be automatically answered using earpiece mode. Note DP Handsets should be resting on their cradling and then picked up for this feature to work. The “Auto Answer”...

  • Page 49: Call Hold/Resume

    Both DP Handsets and other VoIP Devices can be connected through a router using public or private IP addresses (with necessary port forwarding or DMZ). Users can perform IP calls using Star code following the below steps: 1. Pick up the handsets and press the Dial key 2.

  • Page 50: Do Not Disturb

    Note You can switch between active/on-hold calls by pressing Options �� Swap. Using DP75x Base Station Web Interface 1. Access DP75x Base Station Web Interface. 2. Go to DECT �� Handsets Settings �� HS# Settings. 3. Set “Disable Call Waiting Tone” to “No”. (Default is No). 4.

  • Page 51: Call Transfer

    Call Transfer The DP Handsets support the Call Transfer feature, you can transfer a call to another party using one of the following ways: Blind transfer: Transfer a call directly to another party without consulting Attended transfer: Transfer a call with prior consulting. Blind Transfer 1.

  • Page 52: Way Conference

    In step 2, re-edit /re-assign a contact from the shared or private directory as a speed dial on the selected key. To Delete a Speed Dial: Repeat the above 2 steps. At step 2, select the Clear Entry option and press OK or Select to confirm. 3-Way Conference The DP Handstes supports creating a local conference with other parties (including handsets starting the conference).

  • Page 53: Push-To-Talk (Ptt)

    Long press the digit “1” key to dial the configured Voice Mail feature code using Default Line. Notes Users can access directly voicemail menu directly to play messages, by clicking on “View” (left softkey) when the notification of a new voicemail pops up on the DP Handstet’s LCD screen. If the VM is protected by a password, users can enter the password using the DP Handset keypad after reaching the Voice Mail system.

  • Page 54: Call Features

    The User should expect a delay of 6-8 seconds to establish PTT call due to DECT signaling, which will not exist once PTT call is established. Configuration: The PTT feature is always enabled on the base station, to use this feature, users need to enable the PTT on the handset at: Handset Menu →...

  • Page 55: Restore Factory Default Settings

    Unconditional Call Forward. To set up unconditional call forward: Off hook the phone; Dial *72 and then enter the number to forward the call; Press OK softkey or SEND key. Cancel Unconditional Call Forward. To cancel the unconditional call forward: Off hook the phone;...

  • Page 56: Change Log

    1. Connect the USB cable and power off the DP Handsets. 2. Power on the DP Handset and wait for the Green LED. 3. Press 3 times Central Key (OK/Selection Key) quickly after the Green LED is on. 4. Press the Speaker Key (left bottom) first and then the Mute Key (right bottom) after the Red LED is on. 5.
  • Page 57 Product Name: DP752/DP750 No Major changes. Firmware Version 1.0.21.4 Product Name: DP752/DP750 No Major changes Firmware Version 1.0.21.2 Product Name: DP752/DP750 No Major changes. Firmware Version 1.0.19.8 Product Name: DP752/DP750 No Major changes. Firmware Version 1.0.19.6 Product Name: DP752/DP750 No Major changes. Firmware Version 1.0.19.5 Product Name: DP752/DP750 No major changes.
  • Page 58 Product Name: DP752/DP750 Added ability to manage 3-way conference from handset. [3-way conference] Firmware Version 1.0.17.1 Product Name: DP752/DP750 No major changes. Firmware Version 1.0.15.15 Product Name: DP752/DP750 No major changes. Firmware Version 1.0.15.6 Product Name: DP752/DP750 No major changes. Firmware Version 1.0.15.3 Product Name: DP752/DP750 No major changes...
  • Page 59 Updated German translations for both DP750 Web UI and DP720 handset UI. Firmware Version 1.0.4.2 Product Name: DP750 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.
  • Page 60 Added DP720 walk-through setup wizard after factory reset. [Setup Wizard] Added support for more languages and updated translation. Added DP720 factory reset combo key to be able to recover the device during booting up. [DP720 factory reset using combo key] Firmware Version 1.0.2.16...
  • Page 61 Added stop dial tone if first key not number key after off hook Firmware Version 1.0.0.16 Product Name: DP750 This is the initial version for DP750/DP720. Need Support? Can’t find the answer you’re looking for? Don’t worry we’re here to help!

This manual is also suitable for:

Dp722Dp725Dp730
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