User Guides

SIP Error & Response Codes

SIP Error & Response Codes

Jump to: 1xx - Provisional Responses 2xx - Success Responses 3xx - Redirection Responses 4xx - Request Failure 5xx - Server Failure Responses 6xx - Global Failure Responses 1xx - Provisional Responses (Informational SIP Codes)1xx SIP Provisional Response codes are...

How many SIP trunks do I need?

How many SIP trunks do I need?

Switching from PSTN to SIP can save any business quite a bit of money, often cutting phone bills by 40%, so it’s no surprise many businesses are making the change. However like the adoption of any new technology, there’s a lot to be learned before fully committing to...

Navigating the 3CX Call Flow Designer

Navigating the 3CX Call Flow Designer

If you have been keeping up to date with the latest 3CX updates, you would have no doubt heard of Call Flow Designer. The 3CX Call Flow Designer (CFD) allows you to visually create call flows with ready to use building blocks such as transfer, disconnect & record....

Managing Your 3CX Voicemail

Managing Your 3CX Voicemail

Introduction Voicemail messages can be accessed by any phone on the network provided you have the extension number and the PIN configured in the extension. Note: Your administrator may reconfigure the default voicemail number (999). If this number doesn't work,...

IP PBX Upgrading Tools Released

IP PBX Upgrading Tools Released

Introduction 3CX recently released Update 6 of v15.5 including major SSL security updates and great new features within the web client and smartphone apps. Due to the importance of this update, those using the IP PBX can update to this service pack regardless of...

Creating a 3CX Bridge

Creating a 3CX Bridge

3CX allows you to call offices in separate locations for free by connecting two separate 3CX systems together. A 3CX bridge must be defined as either a “Master” or a “Slave”. The Master bridge is created on one phone system, and the slave is then created on the other....

Call Queues

Call Queues

In this article Introduction Creating a Call Queue Advanced Features Additional Options Introduction Depending on the type of business you run, you may have a large volume of calls coming in at any one time. 3CX has a number of features to assist in answering and...

Setting Up Extension Groups

Setting Up Extension Groups

In this article Introduction Default Group Creating Groups Rights Global Rights User & Manager Rights Introduction Grouping extensions allows the admin to determine what information is shown to which users. Rights for a user can be determined on a group-by-group...

Managing Your IP Phones

Managing Your IP Phones

In this article Introduction Adding Phones Plug & Play (LAN & SBC) Remote Extensions (RPS Server) Legacy Phones (By MAC) Updating Firmware Accessing the UI Changing Settings Introduction The "Phones" section of the 3CX Management Console provides an easy way...