Remote Devices Using 3Cx Sbc; Figure 8: Gxv3275 Account General Settings - Grandstream Networks 3CX Configuration Manual

Remote Devices using 3CX SBC

To configure a Grandstream device located behind a 3CX SBC, follow below instructions:
Note: We will use GXV3275 as example. Same configuration applies to other models.
1. Take note of SIP extension credentials from 3CX Phone System to be configured on the device.
2. Log in to the phone and go to Account  General Settings.
3. Make sure to set Account Active to "Yes".
4. Fill the information related to SIP extension created on the 3CX Phone System.
5. In SIP Server field, enter the IP/FQDN of 3CX Phone System (in this example: "gstest.3cx.eu"),
and click on Save.
6. Once saved, navigate to Network Settings under account and type in the private IP and port of
3CX SBC in Outbound Proxy field (192.168.6.31:5060).
Configuring Grandstream Devices with 3CX Phone System

Figure 8: GXV3275 Account General Settings

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