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Dial Codes

Call Pick-up

If you hear a particular extension ringing, and you know that person is not able to take the call, you can take the call using the ‘Call Pickup’ feature. To do this, type:
*20* <extension number>
This will redirect the active call from the specified extension to your extension. You can also retrieve a call from a ringing extension without specifying the extension number. To do this, type *20* followed by the send key. This will redirect the first available active call to your extension.

Call Parking

If you wish to “park” a call and then pick up the call from another extension, then you can park the call in a ‘Parking orbit’ and then pick up the call from another extension.
To park a call:
BLIND TRANSFER BUTTON followed by *00 to 09 to specify the parking orbit.
For example *01 will place the call in the parking orbit 1.
*02 will place the call in the parking orbit 2 etc.
To pick up a parked call:
*10 to 19 where the 0 – 9 is the park orbit number
For example *11 will pick up any calls parked in parking orbit 1
*12 will pick up any calls parked in parking orbit 2

Multiple Calls in Parking Lots

Parking lots support parking of multiple calls. Therefore, when un-parking, you can add the extension number from which the call was parked to be sure that you un-park the particular call you had initially parked there.
For example, if extension 100 parked a call in park 0, this call can be picked up by extension 101 by keying in *10100

Examples for Popular IP Phones
Some examples to park a call with popular phones:

  • Snom – press the TRANSFER button and dial *00
  • Polycom – press the TRANSFER button, from the screen, then choose the option BLIND and then dial *00
  • Cisco – choose “more” option on the screen, choose BlndXfr and dial *00
  • Linksys – press the right arrow key on the navigation button for more options and then choose bxfer and dial *00


To leave a message in a Voicemail box of a particular Extension:
Dial *4{ext}
For example, *4100, will leave a voicemail message in the voicemail box of extension 100.

Status (Do Not Disturb mode)

To change status for a particular extension:
Dial *60 to set the extension to Available status
Dial *61 to set the extension to Do Not Disturb mode


To log in or log out of the calling queues:
Dial *62 to log into calling queues
Dial *63 to log out of calling queues


The intercom feature allows you to make an announcement to another extension without requiring the other party to pick up the handset. The message will be played via the other phone’s speaker. The audio is two way, and the called party can respond immediately without picking up the handset. To call a user via the intercom function:

Prefix the extension you wish to call with *9, followed by the extension. For example to make an intercom call to extension 100 you should dial:

Important: Intercom is disabled by default for security reasons. If you want your phone to Auto-answer 3CX Make Call requests (when the phone does not support CTI like the Cisco SPA series) you need to configure a dial code in the 3CX Phone System Settings >> Advanced >> Dial Codes tab. This Dial code must be unique and must not conflict with any of the other dial codes.

Billing Code

The Billing Code feature’s default value is **. This allows you to add a tag to a call you want to make.
For example, whenever you make a call for a particular customer, you want to tag the call with the customer’s billing code (for example 3265), so that you can bill the customer at the end of the job. When anyone within the company makes a call related to the customer’s job, the caller will need to dial the number in the following format: Destination**3265. For example, if the number is 96626870, then the caller needs to dial 96626870**3265

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