499 caller is forbidden when the 3CX extensions cannot call each other
Grace2023-04-06T16:10:28+08:00Background: Users reported that after upgrading the 3CX server, their mobile app and IP
What domains and ports need to be allowed for accessing 3CX when installing it on Linux?
tony2023-04-06T10:51:31+08:00When connecting to the internet with a computer, security is one of the essential
3CX extension accidentally dialed *61
admin2023-04-07T13:55:17+08:00Background Some of our customers asked us that an extension of their 3CX system
How to check 3CX max concurrent calls
admin2023-03-17T14:12:02+08:00Not being able to view the maximum concurrency reached by 3CX should be a
Connecting 3CX to Cisco CUCM
admin2023-03-17T08:12:30+08:00In this article, the way we connect 3CX to Cisco PBX is IP TO
3CX Phone system
admin2023-03-16T15:51:31+08:00the 3CX Phone System allows businesses to enjoy a range of features that help
Understanding the Ports used by 3CX
admin2023-03-15T15:41:42+08:00Port numbers are used by network protocols to establish connections between different network
How to configure DBL GOIP gateway for 3CX via IP to IP mode
Joe Fu2023-02-24T16:49:03+08:00Due to the impact of infrastructure, PSTN lines in some countries are not perfect,
How to add 3CX cloud phone book to the Fanvil phone
Joe Fu2023-02-24T16:43:53+08:00Currently, the phonebook of the Fanvil phone is a local phone book. It is
3CX Mailbox Server Test 5.7.0 Denied Error
Joe Fu2023-02-24T09:24:01+08:00Overview The mailbox server in the 3CX server is very important for the 3CX
