on "Shared Call Appearance (SCA)" switch to turn it on.
Figure 67: GXV3275 SCA Settings on LCD
To configure SCA via web GUI, go to Account page->SIP Settings to fill out the options in the following
figure.
Figure 68: GXV3275 SCA Settings on Web UI
For more information about SCA configuration and function, please refer to the link below:
http://www.grandstream.com/sites/default/files/Resources/GXV_SCA_Guide.pdf.