Grandstream Technical blog

Apr 20, 20211 min read

3CX Intermediate Certifications Exams Sample Questions

Click to download 3CX Intermediate Certifications Exams Sample Questions V15.

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Apr 12, 20212 min read

How to Configure Voicemail Group and Voicemail Retrieval in Grandstream UCM

Here are some of the recommended configurations on how to configure a Voicemail Group: Option 1: Call Queue At the GXP Phones Navigate to...

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Apr 12, 20211 min read

How to recover Grandstream GVC32XX

A lot of times, we have seen Grandstream video conferencing unit (GVC 32XX series) are stuck at booting up with the logo. Here are the...

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Oct 18, 20181 min read

Least Cost Routing using Grandstream IP PBX UCM

Scenario : There are 2 UCMs peered, 1 in USA and another in Australia. How do we allow least call routing ? Here's the configuration...

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Oct 10, 20181 min read

Grandstream Phones Configuration via SSH Commands

Besides Web UI Interface, users may choose to configure Grandstream Devices through Secure Shell Interface (SSH). Connecting to phone via...

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Oct 9, 20181 min read

Grandstream Gateway GXW4XXX Recovery Mode

Common Issues: Gateway is stuck at “Booting…” Web UI shows 'No Service Running' Recovery Mode 1. Keep the Ethernet cable connected 2....

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Oct 2, 20181 min read

Grandstream GXP 21XX - Local Upgrade User Guide and Troubleshooting

Starting firmware 1.0.7.81, GXP 21XX supports local firmware upgrade. You can easily upload the firmware bin file (gxp21xxfw.bin)...

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Oct 2, 20181 min read

Syncing XML Phonebook from Apache Web Server to Grandstream Phones

Setting up Apache Web Server in Ubuntu VM Step 1: command sudo apt-get update Step 2: command sudo apt install apache2 Step 3: command...

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