Grandstream GXP 1400 & GXP 1405

The Grandstream 1405 is compatible with the OnSIP boot server and as such, you should use those instructions to register the phone.


Grandstream now allows public download of documentation and software at:

Phone network configuration completed.

The following instructions assume your phone has successfully booted and completed network configuration including obtaining valid IP addresses for itself, an IP gateway and DNS servers either via DHCP, manual or other means and that your phone is running with factory defaults.

Phone is running firmware release or better.

You can find the firmware version your phone is currently running by pressing the "Menu" button (the center of the navigation wheel), select "Status" then scroll down until you see 'Prog: firmware version'. If you are running a version prior to, please upgrade your phone's software before proceeding (refer to your Grandstream Administrator's Guide).

Updating Firmware

There are several options for upgrading the firmware on the Grandstream GXP 1405: TFTP, HTTP and HTTPS. These instructions cover using a simple web-server with no authentication.

You will need an functioning web-server server in order to complete the firmware update. First, identify the root directory of the web-server, where the default page is stored. Please see the configuration guide of your web-server to identify the specific path. For Mac OSX users, this default directory is:


Download the Grandstream firmware and extract the files to this directory. There are four files and they must be in the server's root directory (not the machine's root directory). The individual files should then be accessible via a web browser by typing the following in the address bar: {ip_address}/{filename}. For example:

Once the HTTP server is active and accessible, navigate to the configuration page of your Grandstream GXP 1405 phone. Login and click on the "Settings" tab. Then click on "Advanced Settings". Scroll down to the "Firmware Server Path" section and type in the IP address (IP address only) of the web-server that is currently hosting the firmware. There is no need to type in the firmware prefix/suffix.

Click on the "Update" button, and reboot the phone.

Phone Configuration

Step 1: Gather information for each user.

Each user has a set of credentials which will be needed to configure each phone. For each phone that you are configuring, obtain the following:

  • "SIP Address" (Address of Record)
  • "SIP Password"
  • "Auth Username"
  • "Username"
  • "Proxy/Domain"

You can find this information in the user detail pages under the "Users" tab in the "Phone Configuration" section.

Phone configuration section

Step 2: Log into your Grandstream phone through a web browser.

When your phone is powered on and connected to your LAN, use a browser to navigate to the IP address of your phone. Simply enter the IP address into your web browser as you would for any website. You locate your phone's IP address by pressing the "NextScr" button on your phone twice. You should see your local weather first, then your phone's IP address. The factory default password for the webpage is 'admin'. Go to the "Accounts" tab.

Step 3. Enter your user information from Step 1.

  • Account Active > Select "Yes"
  • Account Name > your choice
  • SIP Server > "Proxy/Domain"
  • Outbound Proxy > ""
  • SIP User ID > "Username"
  • Authenticate ID > "Auth Username"
  • Authenticate Password > "SIP Password"


Step 4. Verify the Codecs

Scroll down on the page until you see "Preferred Vocoder"
Verify that the following are listed in choices:

  • G722
  • PCMA
  • PCMU


Scroll down until you see the "Update" button. Click this button, and then reboot your phone for all your settings to take place.

Step 5. Confirm that your phone is registered.

Under the "Status" tab, scroll down until you see "Registered". Verify that "Account 1" is registered.


If you are experiencing trouble, double-check your settings as described above and be sure to verify that your password was entered correctly without any leading or trailing spaces. If you are still having problems with your phone configuration, please see our troubleshooting section for further help. 

Updated April 2017


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