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Knowledgebase : Support > VoIP
WHAT IS 3CX? It is a software based PBX (Private Branch Exchanged) that is based on SIP (Session Initiation Protocol) standard. It enables extensions to make calls via PSTN (Public Switched Telephone Network) or via VoIP (Voice over Internet Phone) se...
3CX Client is a software application that can run on supported devices (PC, Mac or Mobile Devices). It provides telephone functions for internal or external use and can run alongside with IP phones using the same extension number. Requirements: * Op...
Requirements: A 3CX Supported IP Phones * Fanvil * Grandstream * Htek * Snom * Yealink See the full list of supported IP phones and firmwares informations at www.3cx.com/support IP Phone Provisioning Is the process of setting up a predefi...
VoIP Providers or SIP Trunks delivers telephone services and unified communications to customers who uses and are equipped with SIP Based PBX like 3CX. Unified communications applications provides services like; voice calls, video conferencing, and web c...
Provisioning is a method of providing configuration using prefilled settings that the vendor uses. It speeds up the deployment and prevents human errors on the installation process. This is a technique which 3CX prefers to use. 2 types of 3CX provisioni...
INSTALLING 3CX System Requirements: Supported Operating Systems * Linux Debian 9 * Dedicated server for 3CX * There should be NO 3rd Party softwares like DNS and VPN * Microsoft Windows 10 64 Bit (Pro or Enterprise) * Microsoft Server 20...
Firewall configuration is a requirement for 3CX to work properly on the system. There are settings that needs to be changed for Voice Calls and other features to work and connect to the 3CX server. Requirements: * Basic Knowledge in Routing * Conf...