Description The users experience 10 – 20s delays when receiving inbound calls, either through Analog or VoIP trunk. Outbound and internal calls (between extensions) work as expected. The More You Know Please ensure that the Call Control option under the Value-added Features > API Configuration page is disabled. When this option is enabled, the UCM will wait … Read more
Description This article describes the sample of the Outbound Routes Dial Plan for Australia in Grandstream UCM. Outbound Route Dial Plan Pattern Local _XXXXXXXX (this allows you to dial a local number like 9411 0000) Mobile _04XXXXXXXX (this allows you to dial a mobile number like 0413 431 000) National _[2-9]XXXXXXXXX (this allows you to … Read more
Description This page describes a simple simulation of configuring multicast paging in UCM and IP Phones. Steps: 2. Go to IP Phone > Setting > Multicast Paging > Listening Address > enter the same Multicast IP Address and port as configured in UCM 3. Dial the paging extension (eg. ext. 8008) and the phones with … Read more
Description Previously the Username and Password fields can be left blank if the UCM62XX or UCM6510 act as LDAP server that allows anonymous binds. This does not apply to UCM630X in the latest firmware. Without entering the Username and Password, the UCM630X LDAP search will fail on the phone. How-to Navigate to the phone’s Web … Read more
Description We have configured the HA feature with two UCM630X successfully. We also configure a SIP Peer trunk with an Avaya PBX. However, when the phones are registered with HA Cluster IP address, the outbound calls fail with an error: The call is rejected by the server. The outbound call works if the phones are … Read more
Description This article shows you the steps by steps on how to configure and troubleshoot Grandstream UCM’s Email Setting using a Gmail account. How-to 2. Go to PBX Settings –> Network Settings –> Basic Settings > DNS Server 1, enter Google DNS (for eg. 8.8.8.8), followed by Save and Apply. 3. Log in to your … Read more
Description There is a call drop issue that involves Fanvil Indoor Station and Grandstream GXV3350 registered through UCM63XX. Missed calls are shown on the Fanvil SIP Indoor Station. However, a call goes through if it is dialed from GXV3240. Analysis We manage to capture the packets from UCM and analyze both good and bad calls … Read more
Description In some countries, the providers of SIP trunks deliver a private IP for the routing of calls on their SIP trunks, in these cases, it is necessary to manage static routes to redirect outgoing calls on their private network or interface. In dual-mode, the UCM6XXX is able to handle a different network per individual port and a … Read more
Description When utilizing Zero Config to detect devices across subnets, users might encounter the error “LAN port is disconnected. Please connect LAN port to discover again.” in the Grandstream IP PBX UCM62XX series. Network Setup Troubleshooting steps Workaround To resolve the issue and enable Zero Config to auto-detect devices across subnets, try the following steps: … Read more
