User Guide
Table Of Contents
- DOCUMENT PURPOSE
- CHANGE LOG
- GUI INTERFACE EXAMPLES
- WELCOME
- PRODUCT OVERVIEW
- GETTING STARTED
- CONFIGURATION GUIDE
- Obtain HT801/HT802 IP Address via Connected Analogue Phone
- Understanding HT801/HT802 Interactive Voice Prompt Response Menu
- Configuration via Web Browser
- NAT Settings
- DTMF Methods
- Preferred Vocoder (Codec)
- Configuring the HT801/HT802 Through Voice Prompts
- Register a SIP Account
- Rebooting the HT801/HT802 from Remote
- CALL FEATURES
- CALL OPERATIONS
- RESTORE FACTORY DEFAULT SETTINGS
- EXPERIENCING HT801/HT802

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HT801/HT802 User Guide
Version 1.0.5.11
Figure 10: Web HTTP Port
NAT Settings
If you plan to keep the Handy Tone within a private network behind a firewall, we recommend using STUN
Server. The following three settings are useful in the STUN Server scenario:
1. STUN Server (under advanced settings webpage) Enter a STUN server IP (or FQDN) that you may
have, or look up a free public STUN Server on the internet and enter it on this field. If using Public IP,
keep this field blank.
2. Use Random SIP/RTP Ports (under advanced settings webpage) This setting depends on your
network settings. Generally, if you have multiple IP devices under the same network, it should be set
to Yes. If using a public IP address, set this parameter to No.
3. NAT traversal (under the FXS web page) Set this to Yes when gateway is behind firewall on a private
network.
DTMF Methods
The HT801/HT802 support the following DTMF mode:
• DTMF in-audio
• DTMF via RTP (RFC2833)
• DTMF via SIP INFO
Set priority of DTMF methods according to your preference. This setting should be based on your server
DTMF setting.