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V20 Update 10 Alpha 2 Learn more

Phone System / PBX

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Cloud server ports

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Sep 14, 2014

leejor

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Calling out on incomming queue

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Sep 12, 2014

leejor

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Confusion - dect wireless phones, roaming, etc?

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Sep 11, 2014

leejor

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Disable Chat

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Sep 11, 2014

snowsam

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Windows Updates Best Practice

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Sep 11, 2014

tsukraw

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Large faxes cutting off half way

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Sep 10, 2014

protocol-link

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Hold early callers to conference calls

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Sep 9, 2014

jasit

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3CX Cloud, Remote Phones - POTS Line Failover?

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Sep 9, 2014

leejor

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WebMeeting Questions

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Sep 9, 2014

qhelp

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3CX SIP Trunk to Mitel MCD

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Sep 9, 2014

leejor

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Extensions slow to register

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Sep 9, 2014

Pierre_3CX

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Yealink W52P auto provision problem

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Sep 9, 2014

Pierre_3CX

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3CX Licensing

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Sep 9, 2014

Pierre_3CX

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Parsing Server Activity Log

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Sep 8, 2014

3CXusername

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Customer callers somehow end up talking to each other

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Sep 8, 2014

leejor

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3CX API Phone Status

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Sep 8, 2014

Pierre_3CX

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3CX phones system, multiple access points, no voice

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Sep 6, 2014

leejor

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2008r2 VM IC Time Sync vs. Local CMOS Clock after update

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Sep 5, 2014

egiblockDM

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Voice box

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Sep 5, 2014

NickD_3CX

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Voicemail locked - log event

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Sep 5, 2014

Pierre_3CX

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Version 20 Update 10 centralizes IP phone firmware management in the 3CX Admin Console. From the Phones page, you can review the firmware reported by each phone, assign the firmware it should use and run common device actions.The Firmware library stores both 3CX firmware and vendor firmware uploaded...

Add Your Own Phone Brand: Custom Template Guide

4 September 2026

3CX ships with built-in templates for the supported phone vendors. If your brand or model is not on that list, you can add support by creating a Custom Template. This guide walks through the process using a working sample template you can adapt.A template is an XML file that tells 3CX how to generat...

AI Providers for 3CX Programmable Extensions

31 August 2026

3CX Programmable Extensions let developers create AI agents that handle live calls through the 3CX Phone System.3CX Agentic Call Control is a set of ready-made code examples for building those AI agents. Each example connects a Programmable Extension to a realtime AI provider such as OpenAI, xAI, Ge...