Help Center

Welcome to the Help Centre

Grandstream GDS3705 Door Phone

GDS3705 Door Phone Information Guide
GDS 3705

The GDS3705 was built for users looking for a strong audio-only facility access and security monitoring solution that can be deployed in environments of all sizes. The GDS3705 comes equipped with a zinc alloy metal casing, making it weatherproof and vandal resistant and offers alarm-in and alarm-out support for integration with existing security devices.

 

The GDS3705 integrates with Grandstream’s free management utility software, GDS Manager, allowing RFID card information.

Features

  • Keypad for secured entry

  • Supports SIP calls to IP phones to facilitate communication

  • HD audio options with up to 1.5m of audio input and 3m of audio output

  • Built with a metal casing to make it weatherproof and vandal resistant

  • Integrated PoE to power the device and provide a network connection

  • Built-in dual microphone and HD loudspeaker with advanced AEC offers intercom functionality

  • Built-in RFID Chip Reader *

User Information

DTMF code: For Poly Desk phones and all phones on Cloud PBX Deployments, there is a DTMF code that triggers the door switch. It can be up to 4 characters in length.

Open Door soft key: With On-Premise NEWT PBX’s, the Local IP address is used to enable enhanced features for Grandstream desk phones. Once configured with appropriate local IP addresses, the phone displays the “Open Door” soft key. This key automatically sends the open-door code to the door phone and can be activated either during the call or when the call is still in the ringing state.

Multiple Answering: You can set the list of extensions that are dialed when the door phone call button is pressed.

Extension Configuration

Hardware settings can then be modified in the Extension Details screen. This screen is available for NEWTCF Admin users.

Door Code and Extensions List
  1. From the Extension Basics Tab, click on the Pencil Icon at the end of the line item for the Door Phone, to get to the extension details screen

  2. Add the Extension Name

  3. Add the Door Code: This is the numeric DTMF code that triggers the door switch. It can be up to 4 characters in length.

  4. Call Group: This is the list of extensions that are dialed when the door phone call button is pressed. Click on the Add + button to add additional phones.

Support Information

* RFID capability is included in this hardware; however, access-control installation and configuration require a certified security integrator. Fibernetics does not provide installation or support for RFID implementations.

Please note that if a customer decides to use RFID - it will be treated as a 3rd party SIP device at that point.

Was this article helpful?
©2026
Powered by YourGPT