Interviewer - Server > Configuration and customization > Web configuration files > Settings for the Phone Participants activity > Changing port settings and Web protocol
 
Changing port settings and Web protocol
Phone Participants expects to use standard communications ports and protocols for conducting telephone interviews. These are normally port 80 for http and port 443 for https. The default is http on port 80. If you want to use a different protocol or port, you may specify these requirements in the activity's Web.config file:
<appSettings>
  <add key="INTERVIEW_SERVER" value="RED" />
</appSettings>
INTERVIEW_SERVER names the Interview Service computer and, optionally, the port and protocol to use if these are different to the defaults. If the key is empty, Phone Participants substitutes the name of the computer on which it is running. For example:
<add key="INTERVIEW_SERVER" value="http://RED:8080" />
See also
Settings for the Phone Participants activity