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About 3CX

3CX Phone System for Windows is a software-based IP PBX that replaces a proprietary hardware PBX / PABX. 3CX’s IP PBX has been developed specifically for Microsoft Windows and is based on the SIP standard, making it easier to manage and allowing you to use any SIP phone (software or hardware).


See below for a list with supported features when using the Gigaset IP devices behind an 3CX PBX system.

All tests were performed by the Gigaset pro support team onsite at 3CX headquarters with 3CX support.

See the 3CX website page which explains how to Auto-provisioning N510 IP PRO when connected to the 3CX PBX

Feature                                       N510N720Maxwell B/2/3Maxwell 10
Software release:  2401052.19.6252.5.33.1
Basic CallYesYesYesYes
Calling line (CLIP)YesYesYesYes
Connected line (COLP)----
Anonymous callPlatform FeaturePlatform FeaturePlatform FeaturePlatform Feature
Do Not Disturb---Yes
Message waitingYesYesYesYes
Call list/historyYesYesYesYes
Voice mail deposit/retrievalYesYesYesYes
Call waitingYesYesYesYes
Call Hold / ToggleYes-YesYes
Music on HoldYesYesYesYes
Call forward (CFU)Platform FeaturePlatform FeaturePlatform FeaturePlatform Feature
Call forward (CFNR)Platform FeaturePlatform FeaturePlatform FeaturePlatform Feature
Call forward (CFB)Platform FeaturePlatform FeaturePlatform FeaturePlatform Feature
Call Transfer attendedYesYesYesYes
Call Transfer unattendedYesYesYesYes
Call Transfer blind----
DTMF (RFC2833)YesYesYesYes
Conference 3ptyYes-YesYes
BLF Busy / Idle indication--YesYes
Call pick-up direct  ( *20* extension)YesYesYesYes
Call pick-up group ( *20 )YesYesYesYes
Call pick-up BLF--YesYes
Call completed elsewhereYesYesYesYes
UDP / TCPYes / YesYes / YesYes / YesYes / Yes
3CX Phonebook--Yes-
Auto provisioningYesYes

URL via Plug and PlayNo,
because is FXS/DECT Device
because is FXS/DECT Device

Number of SIP accounts via prov.610011

Web Language
  • English
  • German
  • French
  • Polish

Change device web-password--Yes-

Time zonesYesYesYes-

Tone Set SelectionYesYesYes-

Codec priorityYesYesYesYes

HTTP/HTTPS provisioningYesYesYes-

Firmware updateVia web-interface N510Via web-interface N720Via web-interface MaxwellVia web-interface Maxwell

Trigger provisioningManual (PBX limitation)Manual (PBX limitation)Yes-

Additional information:


Park a call. While on a call, click on the Transfer button and dial *0 followed
by the parking slot. E.g. to park the call in parking slot 1, dial *01.

*0Call Park / Retrieve via function key is possible with Maxwell 2 and 3 from software 2.24
Pick up a parked call. E.g. to pick up a call parked in slot 1, dial *11*1

Pick up a call which is dialling at another extension. For example to
pick up a call dialling on extension 106, dial *20*106, or just *20* for first ringing

Broadcast call. Dial *9 followed by the extension number. If the receiver’s phone
has set-up Call Manager "Auto-answer" option, the phone will pick up automatically.