Use an Analog Phone That is Connected to Your HT812
Learn how to utilize an analog phone that is connected to your HT812 device for effective and reliable communication.
Written by Val Campos
Updated at November 30th, 2023
Table of Contents
Use an Analog Phone
When you have an analog phone connected to the HT812 to use VoIP services, you will find that there are new features you use through the HT812 ATA.
The Interactive Voice Prompt Response Menu
| Menu Option | Voice Prompt | Options |
|---|---|---|
| Main Menu | “Enter a menu option” | Press “*” for the next menu option. Press “#” to return to the main menu. Enter 01-05, 07, 10, 12-17, 47 or 99 for menu options. |
| 01 |
“DHCP Mode” “Static IP Mode” “PPPoE Mode” |
Press “9” to toggle a selection. If using “Static IP Mode”, configure the IP address information using menus 02 to 05. If using “Dynamic IP Mode”, all IP address information comes from the DHCP server automatically after reboot. If using “PPPoE Mode”, configure PPPoE Username and Password from the web GUI to get IP information from your ISP. |
| 02 | “IP Address” + IP Address | The current WAN IP address is announced. If using “Static IP Mode”, enter 12-digit new IP address. You need to reboot your HT812 for the new IP address to take Effect. |
| 03 | “Subnet” + IP Address | Same as menu 02. |
| 04 | “Gateway” + IP Address | Same as menu 02. |
| 05 | “DNS Server” + IP Address | Same as menu 02. |
| 07 | Preferred Vocoder | Press “9” to move to the next selection in the list: PCM U / PCM A iLBC G-726 G-723 G-729 OPUS G-722 |
| 10 | “MAC Address” | Announces the MAC address information of the unit. Note: The device has two MAC addresses. One for the WAN port and one for the LAN port. The device MAC address announced is the address of LAN port. |
| 12 | WAN Port Web Access | Press “9” to enable/disable. Default is disabled. |
| 13 | Firmware Server IP Address | Announces the current Firmware Server IP address. Enter 12-digit new IP address. |
| 14 | Configuration Server IP Address | Announces the current Config Server Path IP address. Enter 12-digit new IP address. |
| 15 | Upgrade Protocol | Upgrade protocol for firmware and configuration update. Press “9” to toggle between TFTP / HTTP / HTTPS/ FTP/FTPS. Default is HTTPS. |
| 16 | Firmware Version | Announces Firmware version information. |
| 17 | Firmware Upgrade | Firmware upgrade mode. Press “9” to toggle among the following three options: Always check. Check when pre/suffix changes. Never upgrade. |
| 20 | “Check Device Individual Certificate Information” | Use the IVR system to obtain specific details about the device’s certificate type. |
| 47 | “Direct IP Calling” | After the dial tone. enter the target IP address to make a direct IP call to. |
| 86 | Voice Mail | Access voice mails messages. |
| 99 | “RESET” | Press “9” to reboot the device. Enter MAC address to restore to factory default settings. |
| 71-74 | Phone calls between different ports of the same HT812 device | HT81x supports inter-port calling from voice menu. 7X (X is the port number) |
| “Invalid Entry” | Automatically returns to the main menu. | |
| “Device not registered” | This prompt will be played immediately after off hook if the device is not registered, and the option Outgoing Call without Registration is set to NO. |
- * = Shift down to the next menu option.
- # = Return to the main menu.
- 9 = Functions as the ENTER key in many cases to confirm or toggle an option.
- All entered digit sequences have known lengths – 2 digits for menu options and 12 digits for IP addresses. For IP addresses, add a 0 before the digits if the digits are less than 3 (i.e. – 192.168.0.26 should be key in like 192168000026. No decimal is needed).
- Key entries cannot be deleted but the phone may prompt an error once it detects one.
- Dial *98 to announce the extension number of the port.
Call Feature Codes
When there is an analog phone connected to one of the Phone ports, your Grandstream HT812 will allow certain dialable codes to be used to do certain things.
Here is a list of the codes that can be used, and the features supported by each code:
| Code | Call Features |
|---|---|
| *02 | Forcing a Codec (per call) *027110 (PCMU), *027111 (PCMA), *02723 (G723), *02729 (G729), *027201 (iLBC). |
| *03 |
Disable LEC (per call) Dial “*03” +” number”. No dial tone is played in the middle. |
| *16 | Enable SRTP |
| *17 | Disable SRTP |
| *30 | Block Caller ID (for all subsequent calls) |
| *31 | Send Caller ID (for all subsequent calls) |
| *47 |
Direct IP Calling Dial “*47” + “IP address”. No dial tone is played in the middle. |
| *50 | Disable Call Waiting (for all subsequent calls) |
| *51 | Enable Call Waiting (for all subsequent calls) |
| *67 |
Block Caller ID (per call) Dial “*67” +” number”. No dial tone is played in the middle. |
| *82 |
Send Caller ID (per call) Dial “*82” +” number”. No dial tone is played in the middle. |
| *69 |
Call Return Service Dial *69 and the phone will dial the last phone number that sent an incoming call. |
| *70 |
Disable Call Waiting (per call) Dial “*70” +” number”. No dial tone is played in the middle. |
| *71 |
Enable Call Waiting (per call) Dial “*71” +” number”. No dial tone is played in the middle. |
| *72 |
Unconditional Call Forward Dial “*72” and then the forwarding number followed by “#”. Wait for dial tone and hang up. (dial tone indicates a successful forward) |
| *73 |
Cancel Unconditional Call Forward To cancel an “Unconditional Call Forward”, dial “*73”, wait for dial tone, then hang up. |
| *74 |
Enable Paging Call Dial “*74” and then the destination phone number you want to page. |
| *78 |
Enable Do Not Disturb (DND) When enabled all incoming calls are rejected. |
| *79 |
Disable Do Not Disturb (DND) When disabled, incoming calls are accepted. |
| *87 | Blind Transfer |
| *90 |
Busy Call Forward Dial “*90” and then the forwarding number followed by “#”. Wait for dial tone then hang up. |
| *91 |
Cancel Busy Call Forward To cancel a “Busy Call Forward”, dial “*91”, wait for dial tone, and then hang up. |
| *92 |
Delayed Call Forward Dial “*92” and then the forwarding number followed by “#”. Wait for dial tone then hang up. |
| *93 |
Cancel Delayed Call Forward To cancel a Delayed Call Forward, dial “*93”, wait for dial tone, and then hang up. |
| Flash/Hook | Toggles between active call and incoming call (call waiting tone). If not in conversation, flash/hook will switch to a new channel for a new call. |
| # | Serves as a Re-Dial key. |
Place a Phone Call
With your analog phone connected to the Grandstream HT812 device, your analog phone can place outbound calls using VoIP.
To place a call to someone…
- Pick up the handset of a connected phone.
- Do one of the following to dial a call:
- Dial the number and wait 4 seconds.
- Dial the number and press #.
Check Your Voicemail
The HT812 indicates that there are new voice mail messages waiting by using its Phone LEDs and a Stutter Tone.
- The Phone LEDs on the HT812 will start blinking slowly when a new voice mail message is available on corresponding account.
- When you pick up the handset of a phone connected to the HT812, a stutter tone will be played the first few seconds followed by dial tone.
Access Your Voicemail
If your HT812 is signaling that there is a voicemail to be checked, you can access your voicemail by…
- Pick up the handset of a connected phone.
- Press *** to access the IVR menu.
- Wait until you hear “Enter the menu option.”
- Press 86 and enter your configured password to access the voicemail menu.