SFP Modules for Grandstream Network Layer 2+ Managed Switches GWN780X(P) Series

SFP Module Grandstream Network Switches

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. SFPs … Read more

Grandstream Wave Mobile Application – Account Registration Failed

Description When Grandstream IP PBX UCM63XX is used in remote work without Remote Connect service (UCMRC), there are certain network settings required to allow Grandstream Wave Mobile application login via UCM’s Public IP addresses; otherwise, you will get login errors such as ‘Account Registration Failed’ or ‘Unable to connect to the server’. Configure the ports … Read more

Grandstream UCM6510 and HA100 connection sample diagram

HA-connections-UCM6510-front

Description The Grandstream HA100 is a high availability IP PBX solution designed for small to medium-sized businesses. It allows for the creation of a redundant system with two Grandstream PBX UCM6510 that can automatically switch over to a secondary system in case of a primary system failure. It also supports automatic failover for SIP trunks … Read more

Phones are stuck at ‘Recovery Incomplete’

Recovery Incomplete Grandstream IP Phones GXP1625

Description This article describes the steps to troubleshoot the Grandstream IP Phones that are stuck at ‘Recovery Incomplete’ or ‘Firmware Initialising’ upon boot up. This is commonly found in GXP16XX series IP Phones – GXP1610, GXP1620, GXP1625, GXP1628 and GXP1630. Cause The error is caused by power failure or disruption during a firmware upgrade or … Read more

Ports required for IPVideoTalk in a closed network

IPVideoTalk Open Ports

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 

Grandstream ATA HT8XX in Bridge Mode

Bridge mode ATA Grandstream-2

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

Grandstream IP PBX UCM – Completion Request / Busy Camp-On

Grandstream Call Completion Busy Camp on

Description This article illustrates the scenario when the caller requests Call Completion when called party is busy with Grandstream IP PBX UCM6XXX. You may refer to the complete guide here. By default, when the Call Waiting feature is disabled at the Extensions and IP Phones, the Call Completion request works only on unanswered or timeout … Read more

Grandstream Android Phone GXV32XX is not responsive when receiving incoming calls

Grandstream GXV32XX is not responsive in answering calls

Description This article describes Grandstream Android Phone GXV32XX as being not responsive when receiving incoming calls. The users are unable to answer or pick up calls from the LCD call screen. This scenario is seen after UCM firmware upgrade. Workaround Please try one of these methods: a. Go to UCM63XX’s WEB UI > Extension > Media  > … Read more