Grandstream Networks GXP1620 - User Manual

Grandstream Networks GXP1620

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GXP1620 User Manual

(Automatic Provisioning Version)

Ver1.0.1 2017/08/22 created

Copyright © 2017 cloudippbx.com

Table of Contents

Other manuals for Grandstream Networks GXP1620

Configuration Guide16 pages

User Guide4 pages

Quick Installation Guide25 pages

Questions and Answers:

J
jeremiahmartinJul 27, 2025
What to do if Grandstream Networks IP Phone cannot register after provisioning?
- J
  John PrattJul 27, 2025
  If your Grandstream Networks IP Phone fails to register after provisioning, first ensure the registered MAC address and provisioning server details are correct. Then, examine your network environment, focusing on router UPnP and SIP-NAT settings. If filtering is enabled on your routers or firewalls, add a rule for our provisioning/login server. If issues persist, contact customer support, providing your unique number, MAC address, and device model.
M
Matthew FarmerAug 5, 2025
How to fix Grandstream Networks IP Phone with no ringer sound?
- T
  Tammy ClarkAug 5, 2025
  If your Grandstream Networks IP Phone has no ringer sound, check these items: * Ensure the Ethernet cable is properly connected. * Verify the AC adapter is connected correctly. * Adjust the volume using the volume button. * Revert any recent changes to settings on the display. * Try disconnecting, then reconnecting the Ethernet cable (reboot).
A
Andre HeathAug 16, 2025
What to do if Grandstream Networks GXP1620 IP Phone has a general failure?
- I
  iosbornAug 16, 2025
  To address a general failure on your Grandstream Networks IP Phone, try unplugging it from the power source and plugging it back in several times. Wait at least one minute after unplugging before reconnecting the device.

Grandstream Networks GXP1620 Specifications

General

Lines	2
Display	132 x 48 pixel LCD
Network Interface	Dual 10/100 Mbps Ethernet ports
Audio Codec	G.711, G.729, iLBC
Power Supply	5V DC, 1A
PoE	Yes
Features	3-way conferencing, call forward, transfer, hold
Protocols Supported	SIP
Headset Jack	Yes
Voice Codecs	G.711, G.729, iLBC
Speakerphone	Yes
Local Phonebook	500 entries

Summary

GXP1620 Overview

Device Assembly

Instructions for assembling the phone, connecting handset, cord, and cables.

LCD Display Functions

Explains the dynamic screen and its key display functions like NxtScr, FwdAll, Redial.

Keypad Buttons

Automatic Provisioning

Provisioning Configuration

Obtain Device MAC Address

Details methods to retrieve the device's unique MAC address for provisioning.

Register Device MAC Address

Process of registering the device's MAC address on the customer management page.

Create Provisioning Settings

Steps to create custom provisioning settings for your device circle.

Device Configuration

Configuring the device through its web interface and maintenance settings.

Firmware Upgrade and Provisioning Settings

Configuring firmware upgrade and provisioning options via the web interface.

Confirm Device Registration

Verifying successful device registration and status on the customer management page.

Enable Firmware Upgrade

Backup Device Settings

Restore Device Settings

Safety Precautions

Troubleshooting

Device Reset

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