When VoIP prioritization is enabled, the RTP media traffic associated with the configured SIP port will be guaranteed. It has a higher priority than class 1~4, it is called Class VoIP. It will occupy up to 50% of the bandwidth, depending on the number of your calls. So there are 5 classes: Class 1, Class 2, Class 3, … Read more
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
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
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
Description SFP (Small Form-factor Pluggable) is a type of transceiver used in networking to connect a device, such as a router or switch, to a network. It is a small, hot-swappable module that sits inside a device and allows it to connect to different types of networks, such as Ethernet, Fibre Channel, or SONET. The … Read more
Description This article describes the warning and error in GWN.Cloud. Failed to provision local device After adding the device to GWN.Cloud, it prompts with a warning – Failed to provision local device: Method Not Found. To get rid of the error message, the users need to upgrade the GWN7062 to 1.0.5.34 to be supported and … Read more
Description This article describes the usage of the default ports in Grandstream Networking GWN76XX access points, GWN70XX routers, and GWN78XX network switches. Wifi Access Points Ports Description 22 SSH 67 DHCP 53 DNS 5353 MDNS 80 or 443 LLMNR 8080 or 8443 Web Portal 9443 Vouchers Authentication 14 or 10014 GWN Manager 223 Mesh 224 … Read more
Description This article describes the list of ports required to setup IPVideoTalk in a closed network: Web home page & Web account portal www.ipvideotalk.com:80 account.ipvideotalk.com:80 WebRTC xmeetings.ipvideotalk.com:10080 meetings.ipvideotalk.com:80 GVC32XX need config api.ipvideotalk.com:80 pro.ipvideotalk.com:30000 pro.ipvideotalk.com:30001
Description This article describes the behavior when Grandstream Analog Telephone Adapter (ATA) is set in Bridge mode. When the ATA HT8XX series is configured in Bridge mode, the devices connected to its LAN port will behave similarly to any devices connected to a switch; they will obtain the IP addresses from the DHCP server and … Read more
Description This article describes the list of ports required for H.323 video calls in Grandstream Conferencing GVC32XX. 389 statique – TCP ILS Registration (LDAP) 1503 statique – TCP T120 1718 statique – TCP Gatekeeper Discovery 1719 statique – UDP Gatekeeper RAS 1720 statique – TCP H323 Call Setup 1731 statique – TCP Audio Call Control … Read more