The VoIP adapter with multiple FXS ports allows you to connect multiple analog phones and register to the SIP accounts. Before configuring the adapter, you need to get the SIP registration information from the PBX server.

This article applies to the VOIP adapter with multiple FXS ports including the following model.

Model	G504	G508	FGW4148-16S	FGW4148-32S	FGW4148-48S
FXS Ports	4	8	16	32	48

This guide uses G508 as an example.

Step 1. Physical Connection

1. Connect G508’s WAN port to the Router/Switch to access the internet, connect the LAN port to a computer with an Ethernet cable, connect one PHONE port to the analog phone.

2. When connected properly, the adapter’s Power light, WAN light and LAN light will be green, the computer will get an IP address (192.168.1.X) from the adapter. When you off-hook the analog phone, you will able to hear the IVR.

Step 2. Login to Management Page

Open a browser and type in the adapter’s LAN IP address 192.168.1.1 in the address bar, a login page displays as below, both the default username and password are admin. Then click Login.

Step 3. Register to the PBX Server

Register a single FXS port

Go to SIP Account > FXS Settings, select a Port, enable the option Port Enable, enter the Proxy Server, Proxy Port, Transport, Display Name, Phone Number, Account and Password, then click on Save&Apply on the bottom of the page.

When registering to the PBX server successfully, the adapter’s PHONE light will be solid green, and the FXS SIP Account Status shows Registered. The analog phone can make outgoing calls or receive incoming calls.

Register multiple FXS ports

Go to SIP Account > Account, enter the Start Port Number, End Port Number, Display Name, Phone Number, Account, Password and Step Length(extension number interval), then click Set, the registration information for all ports is automatically filled in. click on Save on the bottom of the page.

Go to SIP Account > FXS Settings, enable Batch Settings, select the Start Port and End Port, enable the option Port Enable, set the Proxy Server, Proxy Port and Transport, click on Save&Apply on the bottom of the page.

When registering to the PBX server successfully, the adapter’s PHONE light will be solid green, and the FXS SIP Account Status shows Registered. The analog phone can make outgoing calls or receive incoming calls.