Yeastar Technology Fanvil Configuration Manual page 7

Fanvil IP Phone Configuration Guides
Figure 5 Configuring DSS Key4 to activate IAX2 Line
3. Click the "Apply" button at the bottom of the page. And the function of "DSS
Key4" on the phone is to activate IAX2 line.
<End>
www.yeastar.com
Page 7