Description Upgrading the product to the latest firmware version allows the expiration date of Grandstream authorized certificates to be adjusted automatically. Even with the certificate expired, the communication between the phones and clients might not be secure or fully encrypted but the device will still function as normal. Downloads
All Grandstream GWN Networking Access Points‘ Flash size is 128Mb. DDR Memory Models 128M GWN7605/7605LR/7624/7625/7602/7610 256M GWN7615/7630/7630LR/7600/7600LR 512M GWN7660/7660LR/7664/7664LR Table 1 shows the DDR memory used in different Grandstream GWN Access Point models
Description This article describes the difference between Grandstream GVC3220 (US) and GVC3220 (World). The Wi-Fi channels are different between GVC3220 (US) and GVC3220 (World) models. Some Wi-Fi channels in the US conflict with the Radar channels, and they cannot be used in the US region. GVC3220 (US) can only use the Wi-Fi channels below:2.4G: 1 … Read more
Description: Sometimes you will notice that the Grandstream GWN76XX Access Point event log shows multiple messages of WPA-PSK deauthentication (four-way handshake failure) resulting in clients’ Wifi disconnection. When the client device’s RSSI is below -70dBm, it is scanning continuously to find a new AP to roam and connect to. At around -75dBm to -80dBm, the … Read more
Description This article describes the configuration parameters in the GRP26XX series’s LDAP phonebook with Bicom Systems. How to The parameters below are required when configuring LDAP Phonebook: Server Address Port Base Username Password LDAP Number Filter LDAP Name Filter LDAP Name Attributes LDAP Number Attributes LDAP Display Name
Description This article describes how IP calls work in Grandstream GRP260X. According to the developers, a SIP account is required to register onto phones in order to run the SIP stack for the IP calls. The receiving endpoints need to disable the Use Random Ports option. The default SIP Port for IP calls is 5060. … Read more
Description This article describes the compatibility between Zoom app and GVC3200 and GVC3202. Grandstream has not done any official interoperability tests between the Zoom app and GVC320X video conferencing devices. GVC320X is running on Android 4.4.2 while the Zoom app requires Android 5.0 and above. Although you are able to install the Zoom application onto … Read more
Description If you are new to telephony networking and troubleshooting, this guide shows you step-by-step in setup and configuring the parameters to capture the packets locally in Grandstream devices. When we run into telephony issues (for eg. no audio, BLF keys are not working, unable to make calls, etc), in order to have the Support … Read more
Description This page describes the common questions or issues regarding the Grandstream Video Conferencing product GVC3220 and extension microphone GMD1208. We will be updating the contents from time to time. Questions 1. Does GVC3220 work in China? We understand that SIP will work, but what about IPVT and other third-party web-based applications such as Zoom, … Read more
Frequently Asked Questions What is the maximum number of devices that can daisy chain out of single FXS port on a Grandstream ATA? It depends on the REN usage. For example, the HT801 supports up to 5 REN, so if an analog phone uses 2 REN, then you can connect up to 2 phones with HT801. Usually, analog phones … Read more