Description A wake-up call refers to a service provided by hotels or accommodations to wake up guests at a specific time as per their request. It is a feature commonly found in hospitality management software or PMS (Property Management System) platforms. Wake-up calls are often used by guests who have early morning commitments or need … Read more
Description This article describes the call disconnection issue in Grandstream FXO Gateway GXW410X and the steps to capture the logs for troubleshooting. Most of the time, we have seen that FXO Gateway does not detect busy tones correctly causing the calls to hang up. Case 1 :If there are no busy tones heard over the … Read more
Description Grandstream Wave is a softphone application that allows users to make and receive phone calls over the internet using a computer, smartphone, and web browsers. This article describes the troubleshooting steps when the application crashes on iOS devices (such as iPhones and iPads). 1. Go to iPhone > Settings > Wave > Disable Contacts. … Read more
Description Starting 1.0.23.x, Grandstream IP PBX UCM supports High Availability (HA) in Route mode. This article describes an example network diagram of HA in Route and Switch mode. HA in Route Mode The full user guide can be found under HA Configuration Using “Route” Mode section. The steps describe the topology below: HA in Switch … Read more
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
Description If you face a buzzing sound issue when answering calls with a Grandstream Analog Telephone Adapter HT8XX series, here are the steps to work around the issue: How to The FXS port of the HT8XX ATA does not detect the OFF-HOOK action and stops the ringing. Here are some undocumented P values that may … Read more
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
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
Description This article describes the troubleshooting steps to workaround the upgrade failure in the Grandstream GBX20 Extension module version 1.0.0.1. By default, the GBX20 firmware is upgraded by direct network download through the host phone (eg GXV3350 or GRP2615)’s network connection and GXV3350’s firmware upgrade setup. Ensure that you set firmware.grandstream.com on the GRP2615 Web … Read more
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