Learning Hub / Tutorials / ATA Configs / Grandstream HT801 to Hosted 3CX FAQs

Tutorials: Grandstream HT801 to Hosted 3CX

Go under Grandstream Device Configuration and log in. If you do not know the IP address of the ATA, you can plug in an analog phone and dial ***02 and it will play back the IP address.

Under Grandstream Device Configuration, select "FXS Port"

Primary SIP Server: Your 3CX Static IP

*Must be a static IP address.

SIP User ID: 3CX Extension number

Authentication ID: 3CX ID

Authentication Password: 3CX Password

*3CX ID and Password can be found under the extension > Phone Provisioning

Enter in Grandstream ATA/GUI:

Codecs:

Preferred Vocoder (in listed order): choice 1: PCMU choice 2: PCMA choice 3: G729

Enable Feature Settings:

Fax Modes:

Fax Mode ("T.38" selected):

T.38

Pass-Through

Re-INVITE After Fax Tone Detected settings ("Enabled" selected):

Enabled

Disabled

Apply the settings on the Grandstream ATA.

Learning Hub / Tutorials / ATA Configs / Grandstream HT801 to Hosted 3CX FAQs