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Grandstream Networks GXP1625 - User Manual

Grandstream Networks GXP1625
50 pages
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Grandstream Networks, Inc.
GXP1610/GXP1615
GXP1620/GXP1625
GXP1628/GXP1630
Small Business IP Phone
User Guide

Table of Contents

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Questions and Answers

  • L
    Lisa PattonJul 29, 2025
    Why is there no ringer sound on my Grandstream Networks GXP1625 IP Phone?
    • S
      Shannon NelsonJul 29, 2025
      The absence of a ringer sound on your Grandstream Networks IP Phone could stem from several factors. First, ensure that both the Ethernet cable and AC adapter are securely connected. Then, verify the volume settings using the volume button. Also, check the display settings to see if any changes have muted the ringer. As a troubleshooting step, try disconnecting the Ethernet cable and rebooting the device. This issue may be due to a disconnected Ethernet cable, a disconnected AC adapter, changes in volume settings, or changes in the display settings.
  • W
    William PaulAug 11, 2025
    How to fix a general failure on Grandstream Networks IP Phone?
    • D
      Dana ClayAug 11, 2025
      To address a general failure on your Grandstream Networks IP Phone, try unplugging it from the power source and then plugging it back in, repeating this process a few times. Allow at least one minute before plugging the device back in.

Summary

Product Overview

Technical Specifications

Installation Guide

Connecting Your Phone

Describes how to connect the phone's hardware components.

Stand Installation

Instructions on how to assemble the phone stand.

Wall Mount Installation

Instructions for mounting the phone on a wall.

Safety Compliances

Warranty Information

Getting to Know the GXP16 XX Series

Using the Keypad

Making Phone Calls

Making Calls Using IP Addresses

Direct IP Call Setup

Explains how to make ad-hoc calls without a SIP proxy.

Quick IP Call Mode Configuration

Explains how to make direct IP calls using fewer digits.

Answering and Managing Calls

Call Recording Functionality

How to record conversations using the UCM6xxx series server.

Call Transfer Procedures

Blind Transfer Method

How to transfer a call without speaking to the recipient.

Attended Transfer Method

How to transfer a call after speaking to the recipient.

Auto-Attended Transfer Setup

How to automatically transfer calls based on settings.

Conference Call Management

Initiating and Managing Conferences

How to initiate, cancel, and manage conference calls.

Easy Conference Mode

Voicemail and Shared Call Appearance

Advanced Call Features

Call Forwarding Setup

How to set up unconditional, busy, and delayed call forwarding.

Call Forwarding Cancellation

How to cancel unconditional, busy, and delayed call forwarding.

GDS37 xx OpenDoor Integration

OpenDoor Key Support

Explains integration with GDS37XX for remote door opening.

Configure Door Opening in Idle State

How to configure the phone to open doors from idle state.

Connecting to Devices

EHS Headset Setup

How to connect and use an EHS headset with the phone.

Restoring Factory Default Settings

Reset via LCD Menu

Steps to reset the phone to factory defaults using the LCD menu.

Reset via Web GUI

Grandstream Networks GXP1625 Specifications

General IconGeneral
BrandGrandstream Networks
ModelGXP1625
CategoryIP Phone
LanguageEnglish

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