Grandstream’s MIB file of the OID list

Description Management Information Base (MIB) is an SNMP ASCII text file that describes the devices that are being monitored. These parameters send the correct requests from the SNMP manager to client devices (Grandstream endpoints). This allows the users to monitor the status of trunks in gateways and ATAs. Tools 1. SNMP manager – iReasoning MIB … Read more

Grandstream FXO Gateway GXW410X Caller ID Detection with 3CX Phone System

Description Many users encounter issues with the GXW4104/4108 not identifying caller IDs on incoming calls. Below are some troubleshooting steps to help resolve these issues. Troubleshooting Steps Telco Provider 1. Enable Caller Line Identification (CLI)Ensure that CLI is enabled on your phone line with your service provider. Many users are unaware that this service may … Read more

How to Factory Reset the Grandstream IP Phones via SSH on Windows

  Description If you’re facing issues with the Grandstream phones and need to perform a factory reset via SSH, follow this step-by-step guide. This method is useful when the standard factory reset option doesn’t fully clear the device memory (nvram). Steps 1. Enable SSH under the phone’s Web UI > Maintenance > Security Settings > … Read more

Configuring GXP1628 MPK’s Speed Dial via Grandstream UCM Zero Config

Scenario Mass provisioning 100 units of GXP1628’s MPK setting via Grandstream UCM’s Zero Config Steps AT UCM 1. Go to UCM’s Web UI > Value Added Feature > Zero Config > Discover GXP1628 phone > Edit > MPK Setting > select Speed Dial > enter your description and value > click Save and Update. 2. … Read more

Understanding Grandstream UCM Troubleshooting Tools and Syslog Modules

Grandstream UCM Syslog Modules for troubleshooting

Description Grandstream UCM has built-in troubleshooting tools under the Maintenance tab. They are : Process Log & Syslog Level CDR API Log: Monitors processes related to CDR API configuration and function. PBX MID Log: Monitors processes related to the CTI module. This includes CRM and PMS features, as well as web pages that use WebSocket … Read more

Grandstream GRP260X freezes and how to fix it

Issue Description GRP260X freezes and is not responsive occasionally, even after firmware upgrade and factory reset. Cause GRP260X that are manufactured before March 2021 may experience this freezing issue. It is caused by the CPU loader that does not upgrade. This can be fixed by uploading the test build 0.28.8.6 followed by an SSH command. … Read more

Recovering Your Grandstream Device Admin Password Without a Factory Reset

Description Many users often forget the “Admin Password” needed to access the web interface of their IP phones, especially when the Factory Reset option is unavailable on the device menu. This article outlines methods to reset the administrator password for Grandstream devices. Triage Before proceeding, verify the following: Method 1: GDMS GDMS (Grandstream Device Management System) … Read more

Understanding Call Waiting Flow on IP Phones

"Enhance Communication Efficiency with Call Waiting Feature"

Description The Call Waiting feature allows the users to answer another call while they are already on an active call. Primarily used in business phone systems, this feature enhances employee efficiency and improves customer experience. In short, the call waiting feature allows for two active call lines on a single IP phone, providing call agents … Read more

How does the Firmware Upgrade work in Grandstream devices

Grandstream Firmware Upgrade

Description This article describes the firmware upgrade settings in Grandstream devices and how to analyze the Syslog when it fails. General Settings Go to the gateway or phone’s UI > Maintenance tab > Upgrade and Provisioning, and make sure that: Firmware File If you choose the upgrade the phones locally (via Web UI or local … Read more