Note: This post refers to version 12 and older. Connecting an External Extension to 3CX Phone System is often requested, and can be extremely useful for linking small remote offices and home workers. [...]
[...]Purchasing a router may sound like a pretty simple task. This however can become somewhat challenging when VOIP comes into play. There a couple of core functions that your choice of router needs to perform so as to simplify your configuration for use with 3CX. Required Functionality for VoIP & 3CX Port Forwarding - The device must be able to handle port forwarding from WAN [...]
Skills Covered by this Module What is SIP What is RTP How calls are setup using SIP Message exchanges [...]
Beronet Berofix Gateway: Redirecting an MSN number to a FAX machine / ISDN card and bypass VoIP SIP
Routing of Calls to INTERNAL Destinations WITH Distinctive Ringing 3CX Phone System will convert the CallerID to the local format according to its local settings. To view/edit 3CX Phone System's local settings, go to "Settings -> Advanced" and examine the contents of the "e164 Number Processing" section. The CallerID is first checked to see if it is International. The Caller [...]
PLEASE NOTE: This blog post is only applicable for 3CX Phone System v12.5 and lower. 3CX Phone System includes functionality to easily set the Time Zone and DST (Daylight Savings Time) parameters on phones via provisioning. By default, 3CX Phone System is configured for US Eastern Time. You can manage Time Zone settings from the 3CX Management Console in the "Settings->Phone [...]
In this example we will demonstrate how to perform a blind and attended (consultative) transfer using a Yealink T21/T22/T26. Note: A Blind Transfer is a transfer to another extension without actually initiating a call to the end destination. The call is blindly transferred to the destination. By comparison, an attended transfer is a transfer where before actually transferring t [...]
In this example we will demonstrate how to perform a blind and attended (consultative) transfer using a Linksys SPA962. We will assume that an incoming call will be received on the Linksys phone which is registered to Extension ---. Note: A Blind Transfer is a transfer to another extension without actually initiating a call to the end destination. The call is blindly transferre [...]
QOS (quality of service) is used to prioritize traffic over other less important traffic. Because VoIP traffic is real time, and delays will immediately be noticed by callers, you will want to ensure that VoIP traffic gets given priority over for example e-mails. QoS can help resolve jitter issues up to a point by having your firewall prioritize the traffic over other traffic. [...]
How to make a 3CX Phone System Version 9 even more secure With the introduction of the new V9 3CX PBX we decided to add some extra security to the PBX. This new feature is called the "3CX Anti-Hacking" and located under Settings/Advanced/Anti-hacking tab. It's main purpose is to block any malicious attacks targeted to the 3CX Phone System server in case the administrator has [...]