1. Okwu mmalite
The Grandstream HT818 is a powerful 8-port FXS VoIP Gateway designed to convert analog telephone and fax lines into a Voice over IP (VoIP) network. It features an integrated Gigabit NAT router, offering robust connectivity and high-quality voice communication. This device is ideal for users seeking to integrate traditional analog devices into modern IP-based communication systems, providing strong encryption, automated provisioning, and excellent network performance.
2. Ozi nchekwa
Please read and follow these safety instructions carefully to prevent damage to the device and ensure user safety:
- Jiri naanị ihe nkwụnye ọkụ enyere na ngwaọrụ.
- Ewepụla ngwaọrụ ahụ na mmiri ma ọ bụ mmiri.
- Zere idobe ngwaọrụ n'akụkụ ebe okpomọkụ ma ọ bụ na ìhè anyanwụ.
- Gbaa mbọ hụ na ikuku ikuku dị mma iji gbochie ikpo oke ọkụ.
- Anwala imeghe ma ọ bụ rụkwaa ngwaọrụ n'onwe gị. Kpọtụrụ ndị ọrụ ruru eru ọrụ niile.
3. Ihe ngwugwu
Chọpụta na ngwungwu gị nwere ihe ndị a:
- Grandstream HT818 8-Port FXS VoIP Gateway Unit
- Ihe nkwụnye ọkụ zuru ụwa ọnụ
- eriri Ethernet
- Ntuziaka nwụnye ngwa ngwa
4. Ihe karịrị anụ ahụview
The Grandstream HT818 features a compact design with clearly labeled ports for easy setup. Below is an image of the device, highlighting its key components.

Foto 1: Grandstream HT818 Analog Telephone Adapter. This image shows the device from a slightly angled perspective, revealing its compact white casing and the various ports on the rear panel, including the FXS ports, LAN/WAN Ethernet ports, and power input.
Ngosipụta akụkụ ihu:
- Igwe ọkụ ọkụ: Na-egosi ọkwa ike.
- Igwe ọkụ ịntanetị: Indicates WAN port status.
- LAN LED: Na-egosi ọkwa ọdụ ụgbọ mmiri LAN.
- FXS Port LEDs (1-8): Indicate the status of each analog phone port.
Ọdụ ụgbọ mmiri azụ:
- FXS Ports (1-8): RJ11 ports for connecting analog telephones or fax machines.
- Port WAN: RJ45 Ethernet port for connecting to your internet router or modem.
- Ọdụ ụgbọ mmiri LAN: RJ45 Ethernet port for connecting to a local computer or network switch.
- Ntinye ike: Maka ijikọ ihe nkwụnye ike enyere.
- Tọgharịa bọtịnụ: A na-eji weghachi ntọala ntọala ụlọ ọrụ.
5. Nhazi ntuziaka
Follow these steps to set up your Grandstream HT818:
- Njikọ Ike: Plug the provided power adapter into the HT818's power input port and then into a power outlet. The Power LED should illuminate.
- Njikọ netwọk:
- Connect one end of an Ethernet cable to the HT818's WAN port and the other end to an available LAN port on your internet router or modem. The Internet LED should light up.
- Optionally, connect a computer or network switch to the HT818's LAN port using another Ethernet cable. The LAN LED should light up.
- Connect Analog Devices: Plug your analog telephones or fax machines into the FXS ports (1-8) on the HT818 using standard RJ11 phone cables. The corresponding FXS port LEDs will illuminate when a device is connected and registered.
- Initial Configuration (Web Interface Access):
- Iji nweta web configuration interface, you will need the HT818's IP address. You can find this by connecting an analog phone to FXS port 1, dialing ***, then dialing 02. The IP address will be announced.
- Mepee a web browser on a computer connected to the same network as the HT818 (either via the LAN port or your main router).
- Enter the HT818's IP address into the browser's address bar and press Enter.
- Log in using the default username (admin) and password (admin). You should change the default password for security.
- Configure your SIP account details provided by your VoIP service provider within the web interface.
6. Ntuziaka ọrụ
Ịkpọ oku:
- Pick up the handset of the analog phone connected to an FXS port. You should hear a dial tone.
- Kpọọ nọmba ekwentị ịchọrọ.
- Chere ka oku jikọọ.
Ịnata oku:
- When an incoming call arrives, the connected analog phone will ring.
- Bulite ekwentị iji zaa oku a.
Ịfaksị:
The HT818 supports T.38 Fax over IP, which is crucial for reliable fax transmissions over a VoIP network.
- Ensure your fax machine is connected to an FXS port.
- Verify that T.38 support is enabled and correctly configured in the HT818's web interface, as well as on your VoIP service provider's side.
- Follow your fax machine's instructions for sending and receiving faxes.
7. Nlekọta
Femụwe ọjọọ:
Regularly check for and install firmware updates from the Grandstream website to ensure optimal performance, security, and access to new features. Firmware upgrades are typically performed via the device's web interface.
Backup and Restore Configuration:
It is recommended to regularly back up your device's configuration settings. This allows for quick restoration in case of accidental changes or device replacement. The backup/restore function is available in the web interface.
Tọgharia Factory:
A factory reset will revert all settings to their default values. This can be useful for troubleshooting or preparing the device for redeployment. To perform a factory reset, press and hold the reset button on the rear panel for approximately 7-10 seconds until the LEDs flash.
8. Nchọpụta nsogbu
If you encounter issues with your HT818, refer to the following common problems and solutions:
- Enweghị ụda ọkpụkpọ:
- Ensure the power adapter is securely connected and the Power LED is on.
- Check that the Ethernet cable is properly connected to the WAN port and your router, and the Internet LED is active.
- Verify that the analog phone is correctly plugged into an FXS port and its corresponding LED is active.
- Confirm that your SIP account is registered successfully in the web interface.
- Enweghị ike ime ma ọ bụ nata oku:
- Check SIP registration status in the web interface. If not registered, verify SIP server settings, username, and password.
- Hụ na njikọ ịntanetị gị na-arụ ọrụ ma kwụsie ike.
- Check firewall settings on your router; SIP ALG should generally be disabled.
- Confirm that the correct dial plan is configured for outgoing calls.
- Fax Transmission Issues:
- Ensure T.38 Fax over IP is enabled in the HT818's web configuration and supported by your VoIP service provider.
- Try reducing the fax machine's transmission speed.
- Check for any network congestion or packet loss that might affect fax quality.
- Nsogbu Njikọta netwọkụ:
- Verify all Ethernet cables are securely connected.
- Check the status of the LAN and WAN LEDs.
- Restart the HT818, your router, and your modem.
9. Nkọwapụta
Below are the technical specifications for the Grandstream HT818:
| Njirimara | Nkọwa |
|---|---|
| Ụdị | Grandstream |
| Nọmba nlereanya | HT818 |
| Ibu Ibu | 1.45 pound (0.66 n'arọ) |
| Akụkụ ngwaahịa | 7.1 x 4.7 x 1.4 sentimita (18.03 x 11.94 x 3.56 cm) |
| Ngwaọrụ Akụrụngwa | Ethernet |
| Ngwa dakọtara | Analog Telephone, Fax Machine |
| Protocol Njikọ Data | Gigabit Ethernet |
| Ọnụego mbufe data | 1000 Megabits kwa nkeji |
| Onye nrụpụta | Grandstream Networks, Inc |
| UPC | 694727370241 |
| Mbụ Dị | Eprel 25, 2018 |
10. Akwụkwọ ikike na nkwado
Grandstream products are typically covered by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Grandstream website. For technical support, firmware updates, and additional resources, please visit the Grandstream support portal or contact your reseller.





