Configuring Calls to Cell Phones with 3CX and Paxton Net2

When visitors use the entry system to call residents, the cell phone (or home phone) number of the residents will be called and the resident can confirm the visitor and press “1” on their phone to release the door and allow the visitor access to the building.  The appropriate elevator floor will also be made available for the resident.

Adding and Changing Cell Phone Numbers for Residents.

Log into the 3CX Web Portal and select “Extensions” from the left menu

The search box can be used to quickly find a unit number.

Select a unit number and click the “Status” button in the button bar on the “Extensions List” page.

Ensure the “Current Status” is set to “Away”.  This should always be set for extensions that are used for Cell Phone forwarding.   For extensions that are used for Bria, 3CXPhone or other native SIP phones, the “Current Status” should be set to “Available”.  Click the “X” in the upper right corner to save and exit.

Select the extension and click the “Edit” button from the tool button bar

While in the “Edit” screen, Select “Forwarding Rules” from the top tab and in the “Statuses” section  ensure the “If in this status, forward calls as follows” is selected as “Away”.

In “Internal Calls” section, ensure “If I am away forward internal calls to” is set as “Forward to number” and enter the resident’s phone number in the “Eternal number” field.

In the “Options” section, ensure the “Accept calls from Ring Groups” is selected.


Click the “OK” button at the top of the screen to save settings.


Note: 3CX Phone System does have a “Forward to Mobile” feature however the DTMF is blocked by 3CX and so the “Press 1 to open door” will not work.  The “Forward to Number” functionality must be used instead.




About “Ring Groups”

Ring group settings are used to dial multiple phones when the resident’s unit number is dialed.  Ring groups can be found in the left menu in the 3CX web console.


Currently, a ring group is set up for each unit and includes an iPad extension as well as two cell phone extension.  Additional call destinations can be added for any unit by adding them to the associated ring group.

Note: The ring time is set to 60 seconds and to ring all destinations in the list. 

Note:  Once a unit is dialled, a call to cell phones needs to be initiated and the time to dial cell phone incurs a delay.  That delay is dependent on the cell phone carrier.

Note:  There are currently only two lines on the system which limits forwarding destination to two.  Additional lines can be added which will allow additional destinations and concurrent calls.


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Dar Zuch

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