Power Consumption of Grandstream SIP Speaker GSC3516

Power Consumption of Grandstream SIP Speaker GSC3516

Description The Grandstream SIP Speaker GSC3516 is a SIP/Multicast Talk-Back Speaker that offers 2-way voice functionality with both a high-fidelity 15W HD speaker and 3 directional microphones and 1 omnidirectional auxiliary microphone that offers a 4.2-meter pickup distance. This article describes the maximum power of GSC3516 as 13.59W(48V DC), and the average power is 4.2W. This … Read more

Slowness issue in Grandstream IP Phone GRP261x series

Description Slowness in IP phones can be attributed to various factors. This article suggests the troubleshooting steps to address slowness and sluggish issues in Grandstream GRP2612 or GRP2613 IP Phones: 1. Disable CPE (TR-069) under System Settings 2. Disable ‘Send SIP Logs’ and ‘Auto Recovery from Abnormality’ under Maintenance > System Diagnostics > Syslog 3. … Read more

Understanding the Certificates Security Settings in Grandstream IP Phones GRP261x series

Understanding Security Settings in Grandstream IP Phones GRP261X

Description This article briefly describes the Security Settings parameter in Grandstream IP Phones GRP261x series. It is important for debugging when the phones are registered via TLS/SSL. ‘Validate Server Certificates’ is mainly used for Web Interface or SSH access. ‘Check Domain Certificates’ is to check a domain using the Trusted Domain Name List. ‘SSLKeyLogFile’ is … Read more

Grandstream GBX20 Extension Module Firmware Upgrade Failure

Grandstream GBX20 Firmware Upgrade

Description This article describes the troubleshooting steps to workaround the upgrade failure in the Grandstream GBX20 Extension module version By default, the GBX20 firmware is upgraded by direct network download through the host phone (for eg GXV3350 or GRP2615)’s network connection and GXV3350’s firmware upgrade setup. Make sure you set firmware.grandstream.com on the GRP2615 … Read more

XML-Based Idle Screen Customization Guide for Grandstream GXP16XX Phone

XML Based Idle Screen Customization Guide for Grandstream GXP16XX Phone

Description The Grandstream GXP16xx supports XML-based idle screen customization. This XML API allows users to customize the idle screen layout as well as the logo, text, or system variables to be displayed. The design of the display and layout depends highly upon personal preferences and requirements. The document below specifies the Grandstream XML Customizable Screen … Read more

Grandstream IP Video Door Phone GDS371X and Cisco Webex Video calling

Description This article describes the settings to be adjusted in Grandstream IP Video Door Phone GDS371X to allow video calling with Cisco Webex. Configurations 1. Configure the Video Encoding Profile of Stream 1,2, and 3 to Baseline under Video & Audio Settings > Video Settings 2. If step 1 fails, set stream to Stream 3 … Read more

Maximum Speed Dial keys supported in Grandstream GXV33XX and GXV34XX series

What is Maximum number of Speed Dials in Grandstream GXV Video Phone series

Description Speed dial is a feature found on many telephones that allows users to quickly dial a pre-selected phone number by pressing a single button or a combination of buttons. This saves time and eliminates the need to manually dial long or complex phone numbers every time they need to be called. This article describes … Read more

Push-to-talk feature in Grandstream Wireless Phone WP8XX series

Grandstream Wireless phone WP8XX series Push to Talk feature

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

Audio delay issue in Grandstream IP Phones GRP260x and IP PBX UCM

Audio delay in Grandstream IP Phone

Description In an IP phone system, audio delay can occur due to network latency, jitter, and packet loss. In addition, audio codecs and processing that are used in IP phone systems can also contribute to audio delay. To reduce audio delay in IP phones, network administrators can use Quality of Service (QoS) techniques to prioritize … Read more