Grandstream HT802 (SkyeFax Configuration)


The Grandstream HT802 is a certified & support ATA that works with SkyeFax. Please follow the steps below to configure it.

Please Note - The Grandstream HT802 only supports 10 digit dialing (you may not dial 7 or 11 digits on the fax machine)

Update Firmware

Before getting started, please make sure you update the HT802 to the most current firmware version. To do that, navigate to "Advanced Settings" and scroll all the way to the bottom. You will see a button to upload firmware:


You can download the firmware for the HT802 here:

Configuring the ATA

Grandstream, just like Cisco, supports the ability to config the ATA via XML files. You can download our recommended configuration here:

Once you have downloaded the config file, navigate to "Advanced Settings", and scroll all the way to the bottom. Click the "Upload Configuration" and follow the steps to load the config.xml file:


Once you have followed those steps, you will need to load the ATA's caller ID and credentials. 

Connecting the ATA to SkyeFax

Once your ATA is fully configured, navigate to the FX1 Tab:


and look for the SIP Credential settings:


Replace the fields as follows:

SIP User ID: Your SIP Credentials Username
Authenticate ID: Leave Blank
Authenticate Password: Your SIP Credentials Password
Name: Your Outbound Caller ID (in E.164 format!)

Once you have configured these fields, navigate to the bottom of the page and click "Update" and then "Apply." We then suggest you power cycle the ATA to make sure it loads all of the settings fresh. You will know your ATA is ready to go when you see that it is successfully registered on the "Status" page: 



Manual Configuration

If you prefer to not use XML file to configure your ATA, you may modify these settings of the FXS Page 1 to configure the ATA manually:

Primary SIP Server:
NAT Traversal: Keep-Alive 
SIP User ID: Your SIP Credentials Username
Authenticate ID: Leave Blank
Authenticate Password: Your SIP Credentials Password
Name: Your Outbound Caller ID (in E.164 format!)
Register Expiration: 2
Allow Incoming Packets from SIP Proxy Only: Yes
Disable-Call-Waiting: Yes
Disable-Call-Waiting-Caller-ID: Yes
Disable-Call-Waiting-Tone: Yes
Jitter Buffer Type: Fixed
Jitter Buffer Length: High
Disable Line Echo Canceller (LEC): Yes
Disable Network Echo Suppressor: Yes
Dial Plan Prefix: 000077
Dial Plan: { [2-9]xx[2-9]xxxxxx }


Device Won't Register

As part of our network's security, our network will begin blocking SIP Registration attempts that happen too quickly. Due to these security measures, it is possible that an ATA gets blocked for retrying its SIP Registration too frequently while you are configuring it. 

If you have followed our guide, and the Registration Status continues to show show Not Registered, please unplug the device from power for 10 minutes and plug it back in. 


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