Grandstream HT812 User Guide

Grandstream HT812 Adaptor manual cover
Pages 39
Year 0
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Grandstream HT812 Adaptor Specification

The Grandstream HT812 is a versatile Analog Telephone Adapter (ATA) designed to integrate traditional analog telephones and fax machines into a VoIP network. This compact device supports two FXS ports, allowing users to connect up to two analog devices. It provides exceptional voice quality utilizing a wide range of codec support, including G.711, G.723.1, G.729A/B, G.726, iLBC, and OPUS, ensuring clear and reliable communication. The HT812 features advanced telephony functionalities such as 3-way conferencing, call waiting, call transfer, and caller ID for enhanced user experience.

Equipped with two Gigabit Ethernet ports, the HT812 ensures high-speed network connectivity and seamless integration into existing infrastructures. Its dual firmware image and anti-tamper secure boot feature enhance security by preventing unauthorized access and ensuring device integrity. The device also supports advanced encryption protocols such as TLS and SRTP to safeguard communications.

The HT812 is managed through a simple web user interface and automated provisioning options, including TR-069 and XML config files, which facilitate easy deployment and management. It is compatible with SIP-based IP PBX systems and softswitches, ensuring broad interoperability and flexibility in various network environments. With its compact design and robust features, the Grandstream HT812 is ideal for both residential and small business applications, providing a cost-effective solution for extending VoIP capabilities to traditional telephony devices.

Grandstream HT812 Adaptor F.A.Q.

How do I configure the Grandstream HT812 Adaptor for the first time?

To configure the Grandstream HT812 for the first time, connect it to your network. Access the web interface by entering the IP address in a web browser. Login with the default credentials (admin/admin), and configure the settings under the 'Basic Settings' and 'Advanced Settings' tabs as per your VoIP service provider's instructions.

What should I do if I forget the password for the web interface?

If you forget the password for the web interface, you will need to perform a factory reset. To do this, press and hold the reset button on the device for about 7 seconds until the power LED blinks. This will reset the password to the default setting (admin/admin).

How can I update the firmware on my HT812 Adaptor?

To update the firmware, log into the web interface, navigate to the 'Maintenance' tab, and select 'Upgrade'. You can either enter the firmware server path provided by Grandstream or upload the firmware file directly if you have it saved on your computer.

Why is my HT812 not obtaining an IP address?

Ensure that the Ethernet cable is properly connected to the LAN port of the HT812 and the router. Check if the router's DHCP server is active. Reboot both the router and the HT812 to refresh the connection.

How do I configure a static IP address on the HT812?

Access the web interface and navigate to the 'Basic Settings' tab. Under the 'IP Address Mode', select 'Static IP' and enter the desired IP address, subnet mask, gateway, and DNS server information. Save your changes and reboot the device.

What can I do if the HT812 is not registering with my SIP server?

Verify that the SIP server address is correctly entered in the 'Profile' settings. Check the network connection and ensure that the SIP credentials are correct. Also, confirm that your firewall allows traffic on the necessary SIP and RTP ports.

How can I perform a factory reset on the HT812?

To perform a factory reset, press the reset button on the device with a pin for about 7 seconds until the power LED blinks, indicating that the reset process has started.

What are the common troubleshooting steps for audio issues on the HT812?

Check the network connection and ensure there is no packet loss or high latency. Verify that the correct codec is selected in the device settings. Make sure the volume settings are appropriately adjusted and that there are no known outages with your VoIP provider.

How do I back up and restore configuration settings on the HT812?

Log into the web interface, go to the 'Maintenance' tab, and select 'Backup'. Save the configuration file to your computer. To restore, go to the same section, click 'Restore', and upload the previously saved configuration file.

Can I use the HT812 with fax machines?

Yes, the HT812 supports T.38 and G.711 pass-through for faxing. Ensure that your VoIP service provider supports faxing and configure the settings under the 'FXS Port' configuration to use the T.38 protocol for reliable fax transmission.