1- Open the interface Page of the device, simply dial ***** from the phone connected to your device and you should hear the IP of the device.

2- Open a browser on a computer connected on the same network and type in address the IP you heard and the device login interface will appear

Password : 123

3- choose “FXS Port” from the main menu and fill the information as follow

• SIP user ID: GULFSIP number.
  Authenticate ID: GULFSIP number.
  Authenticate Password: GULFSIP number password.
• Name: The name that will appear on your telephone screen, can also use GULFSIP number (Optional)

4- Click on Update

5- A new window will appear, click on Reboot .

6- choose “FXO Port” from the main menu and fill the information as follow

• SIP user ID: GULFSIP number (Converter)
  Authenticate ID: GULFSIP number (Converter)
  Authenticate Password: GULFSIP number password
• Name: The name that will appear on your telephone screen, can also use GULFSIP number (Optional)

7- Click on Update

8- A new window will appear, click on Reboot .

9 –  For blocked countries (i.e. United Arab of Emirates , Egypt or Oman) , this device doesn’t work in blocked countries as it doesn’t support VPN .

• Call Forward

You can set call forward rules to forward incoming calls to any other GULFSIP number

1- Open the interface Page of the device, simply dial ***** from the phone connected to your device and you should hear the IP of the device.

2- Open a browser on a computer connected on the same network and type in address the IP you heard and the device login interface will appear

Password : 123

3- choose “Basic settings” from the main menu

• – Unconditional Call Forward To PSTN: When calling the FXO number and after getting the land line tone, the call will be automatically forwarded to the land line or mobile number you choose.
• – Unconditional Call Forward To VOIP: When calling the FXS number, the call will be forwarded to the GULFSIP number you choose.
  – User ID: write the gulfsip number
  – SIP server: sip.gulfsip.com
  – Port: 5060

4- Click on Update

5- A new window will appear, click on Reboot .

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• Fax Setting

You can use FAX with your GULFSIP devices, but you will need to have an internet speed of at least 1MB or higher, a few settings on your GULFSIP hardware device and then connect your FAX with the “Phone” port in your GULFSIP devices .

After setting the FAX you can send to any GULFSIP number or international number if you have balance in your GULFSIP number .

1- choose “FXS PORT” from the main menu

Codec: Set it to PCMU as the first Choice.
FAX Mode: Set it to T.38 (Auto detect).

2- Click on Update

3- A new window will appear, click on Reboot

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• Converter Settings

There are two types of converting Features in the GULFSIP device:

• – Dial the FXO GULFSIP number (Converter number) and you will get the land line tone.
• – Dial the land line number and after a few rings you will get the GULFSIP tone.

1- Choose “BASIC Settings” from the main menu

• PIN for VOIP to PSTN: Set the PIN code for when getting the land line through the converter.
• PIN for PSTN to VOIP: Set the PIN code for when getting the GULFSIP through the converter.

2- Click on Update

3- A new window will appear, click on Reboot

4- choose “FXO PORT” from the main menu

• Number Of Rings: Set number of rings for when you dial the land line and get the GULFSIP line after few rings.
• PSTN Ring Thru FXS: If set to yes, any incoming calls to your land line number will force the phone kit connected to the device to also ring.

5- Click on Update

6- A new window will appear, click on Reboot

Below is a list of the most common problems and its solution :
•Not working “Busy tone”.
•Can’t hear anything.
•One way call “Can not hear the other side” & call disconnects.
•Bad voice quality.
•Converting problem.

Not working “Busy tone”:
• Make sure that your internet connection is working well and stable, also test the internet cable on your PC (Make sure that any wireless connection on the PC is turned off while testing the cable).
• Check your wire connection for your GULFSIP device model from connection page.
• If your internet router is multi-port, change the socket used from router side.
• Restart your internet router and GULFSIP device for five minutes.
• Dial ***** you should hear the IP address of the device, if you hear 0.0.0.0 then that means there is a problem with the internet cable or internet router.
• Reset GULFSIP device by making hard reset using a thin object and pushing the reset button in the GULFSIP device for at least 10 seconds. (Note: Don’t attempt to reset the device unless you have your GULFSIP number & password).
• If you reset the device or find that the device was reset before, you will have to dial ***12, if you hear “WAN Access Disabled” dial 9 and you should hear “WAN Access Enabled”, Then add configuration as shown in configuration page.
Note: If you reset your Grandstream 503 device, you will have to add back the configurations for both “FXS” and “FXO” numbers.

Can’t hear anything:
• Change phone kit and phone wire and make sure that phone wire is installed correctly in the GULFSIP device.
• Restart both router and GULFSIP device.
• Put the power adapter in a socket in the wall direct, also make sure that the power adapter used is correct values (output) as shown in connection page.
• Reset GULFSIP device by making hard reset using a thin object and pushing the reset button in the device for at least 10 seconds. (Note: Don’t attempt to reset the GULFSIP device unless you have your GULFSIP number & password).
• If you reset the device or find that the device was reset before, you will have to dial ***12, if you hear “WAN Access Disabled” dial 9 and you should hear “WAN Access Enabled”, Then add configuration as shown in configuration page.

Note: If you reset your Grandstream 503 device, you will have to add back the configurations for both “FXS” and “FXO” numbers.
Note: If after making a reset to the device you still don’t hear anything, then that might mean there is a problem with the power adapter. You can try to get new one same specification as shown in connection page or contact our customer service.

One way call “Can not hear the other side” & call disconnects:
• Restart both router and GULFSIP device .
• Contact your internet service provider (ISP) and make sure that firewall is turned off on your internet router.

Bad voice quality:
• Restart both router and GULFSIP Device.
• Check your internet speed making a speed test.
• Change codec depending on your internet speed by following configuration as shown below:

• – Use G.723 for low internet speeds.
• – Use G.729 for medium internet speeds.
• – Use PCMU & PCMA for high internet speeds.

Converting problem:
• Check you wire connection and power from connection page.
• Test the land line cable on a normal phone kit, you should hear dial tone.
• Change your splitter.
• Test the device on a different land line if possible, as the problem might be due to the land line itself.