Protected: Maximum Speed Dial keys supported in Grandstream GXV33XX and GXV34XX series
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Push-to-talk feature in Grandstream Wireless Phone WP8XX series
Description Push-to-talk (PTT) is a feature found on some communication devices, such as two-way radios and walkie-talkies, that requires the user to press a button in order to transmit their voice. It is often used in situations where multiple people may be sharing the same communication channel and it is important to prevent accidental transmissions … Read more
Why does Grandstream IP PBX UCM63XX access these IPs?
Description You may notice that the Grandstream UCM63XX series IP PBX is accessing certain IP addresses at all times from your router or firewall services. This article explains the purposes of these IP addresses. ifconfig.meIt is used in ip2location to query the location of an IP address during UCM system startup and download the language … Read more
How to Perform Local Firmware Upgrade to GWN76XX Access Points using DHCP Option 43
Description This article is designed for users who may not have the ability to perform a remote upgrade or access the Web GUI for firmware uploads to the Grandstream access points. Upgrading the device can be accomplished using the DHCP Option 43 Option. This approach allows users to efficiently manage the upgrade process without needing … Read more
Grandstream Switch GWN780X(P) Auto Voice VLAN with LLDP
Description Auto Voice VLAN is a feature in network switches that automatically assigns a separate VLAN to voice traffic on the network. It allows voice traffic to be prioritized and managed separately from data traffic, ensuring high-quality voice communication. When an IP Phone is connected to a switch port that has Auto Voice VLAN enabled, … Read more
Grandstream IP PBX UCM’s Common Issues with SIP Trunks in India
Description In India, there are several telecom service providers that offer SIP trunking services to businesses and organizations. This article describes call establishment issues with Grandstream IP PBX UCM and SIP Trunks in India and suggested settings to resolve them. Case 1: Call drop due to 422 Session Interval too Small (BSNL) Figure 1: UCM’s … Read more
Grandstream GWN Access Point Deployment Guide – Mounting, Placement & Position
Description The placement of an access point can significantly affect its performance and coverage area. Here are some general guidelines for access point placement: This deployment guide will be useful in designing your wireless network architecture. Example
Speed Test and Band Utilization in Grandstream GWN76XX Access Points
Description Running speed tests with access points is important to find out the download and upload speed of the wireless network. It helps to evaluate and optimize the placement or position of the access point and ensure that the wireless network is able to provide adequate coverage and performance. This article describes simple methods for … Read more
Understanding the connection establishment issue between Grandstream GXW450x and IP PBX
Description GXW4501 is a digital VoIP gateway designed to connect digital T1/E1/PRI lines to an IP network, allowing businesses to take benefit of VoIP technology to reduce costs and improve efficiency. This article describes the connection issue between the gateway and IP PBX. Scenario GXW4501 is connected with a traditional PBX via the E1 port … Read more
Noise Level of Grandstream Network Switches GWN780X(P) Series
Description Network switches with higher numbers of ports generate more heat and require more robust cooling systems, and this can result in higher noise levels from the fans. The noise level of a fan is measured in decibels (dB), with higher dB values indicating louder noise levels. The table below shows the noise level of Grandstream Network Switches … Read more