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Grandstream Networks GXP 1620 - User Manual

Grandstream Networks GXP 1620
15 pages
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GXP 1620 USER MANUAL_Ver2.0.1
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Thank you for purchasing Grandstream GXP1620.
Make!sure!and!acknowledge!that!you!have!read!this!manual!before!using!GXP1620.!
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Package Contents:
1. Main Case
2. Handset
3. Phone Cord
4. AC Power Adaptor
5. Ethernet Cable
6. Phone Stand
7. Quick Start Guide

Table of Contents

Questions and Answers

  • J
    James BrownAug 2, 2025
    Why is there no ringer sound on my Grandstream Networks GXP 1620 IP Phone?
    • D
      Dr. Vanessa Michael DVMAug 2, 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.
  • J
    James WardAug 15, 2025
    How to fix a general failure on Grandstream Networks GXP 1620?
    • S
      stephanie25Aug 15, 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 and Setup

Package Contents

Lists all items included in the phone package.

LCD Familiarization

Explains the phone's screen interface and soft key functions.

Keypad Buttons Functionality

Details the purpose and operation of each physical button on the keypad.

Phone Configuration Guide

Initial IP Address Verification and Login

Steps to find the IP address and log into the web interface.

Account and General Settings

Configuration of SIP server, account name, and user IDs.

Network and Security Settings

Setting up NAT traversal and validating SIP security parameters.

Audio and Call Features Configuration

Adjusting audio codecs and customizing call handling features.

Date, Time, and Web Access Management

Setting time zone, NTP server, and managing web interface security.

Maintenance and Firmware Updates

Upgrade and Provisioning Settings

Configuring automatic firmware checks and update methods.

Automatic Upgrade Scheduling

Setting up the frequency and method for automatic firmware upgrades.

Safety and Troubleshooting

Safety Precautions and Warnings

Crucial safety guidelines for device usage and handling.

Troubleshooting Common Issues

Solutions for general failures, ringer problems, and call interruptions.

Initialization and Factory Reset

Procedure for resetting the phone to factory default settings.

Grandstream Networks GXP 1620 Specifications

General IconGeneral
BrandGrandstream Networks
ModelGXP 1620
CategoryIP Phone
LanguageEnglish

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