How to Setup Multiple Grandstream Devices at the same location

If you have multiple Grandstream devices at your location, please follow these instructions.

Note: You will need a router or switch for this to function properly.

First, do not connect the Devices to the router. Instead, connect a computer directly to the LAN port of the first Grandstream and power on the Grandstream.

Note: Do not connect anything into the WAN port of either device at this time. We will get to that point shortly.

Once you have the computer connected to the LAN port of the first Grandstream, open your browser window and go to http://192.168.2.1

• Log into the device with password 123.
• Click on Basic Settings.
• Change the Web Port to 4200.
• Change the LAN DHCP Base IP to 192.168.3.1.
• Click on Update
• Click Reboot.

While the first Grandstream is rebooting, connect the same computer to the LAN port of the second Grandstream and power on the Grandstream. Open your browser window and go to http://192.168.2.1

• Log into the device with password 123.
• Click on FXS 1 and attempt to log in with the password admin.

Note: If the password admin does NOT let you into the FXS tab, then please press and hold the Reset button on the back of the Grandstream until the Power light flickers. This will reset the device to factory settings and allow you to log into the FXS port section of the device.

Once you can access the FXS 1 and 2 section of the device:

• Select Use Random Ports and set to Yes.
• Click on Update.
• Click on FXS 2.
• Select Use Random Ports and set to Yes.
• Click on Update.

DO NOT click Reboot at this time.

• Click on Basic Settings.
• Change the Web Port to 4201.
• Change the LAN DHCP Base IP to 192.168.4.1.
• Click on Update.
• Click on Reboot.

Note: Please repeat the above step for each Grandstream you have at your location, adding to the web port and the Base IP by 1 each time.

Once you have that complete, power off the Grandstream devices.

• Connect each Grandstream into it's own numbered port on the router or switch and then to the WAN port of each Grandstream.
• Power on the Grandstreams.

After 3-5 minutes the Grandstreams should be registered and able to make and receive calls.

If you are unable to place a call after 15 minutes, please contact our support department for additional assistance.