How to connect HT813 Grandtream ATA to Ozeki AI

The Grandstream HT813 is a reliable 2-port Hybrid ATA, enabling users to integrate their analogue phones with VoIP services. This page guides you through configuring the HT813 for use with your Ozeki AI Phone system, detailing setup for its FXO and FSX ports, SIP account registration), and codec selection (including G.729 and T.38 for fax). All settings are manageable via its user-friendly web interface or through a provisioning server.

About the device

The device is officially called: Grandstream Hybrid ATA with 2 Ports HT813 VoIP Analogue Telephone Adaptor

Figure 1 - Grandstream ATA front

  • The device has 1 FXS and 1 FXO port
  • The device supports 3 SIP accounts
  • The device supports T.38 fax
  • The device supports G.729 codec
  • The device supports a variety of other codecs (G.711, iLBC, etc.)
  • The device can be configured via web interface or using a provisioning server

Figure 2 - Grandstream ATA ports

Step 1: Register ATA to PBX

Login to ATA
Figure 1 - Login to ATA

Provide SIP data
Figure 2 - Provide SIP data

Open Basic settings
Figure 3 - Open Basic settings

Configure SIP number to dial and apply chnages
Figure 4 - Configure SIP number to dial and apply chnages

ATA registered to PBX
Figure 5 - ATA registered to PBX

Step 2: Add new AI phone connection in Chat Server

Install AI phone connection
Figure 6 - Install AI phone connection

Configure SIP settings
Figure 7 - Configure SIP settings

Configure AI speech
Figure 8 - Configure AI speech

AI Phone connected to PBX
Figure 9 - AI Phone connected to PBX

Add new routing rule
Figure 10 - Add new routing rule

AI Phone connection created
Figure 11 - AI Phone connection created