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Select one of the source types from the drop-down menu. They are described below.
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OpenCNAM
Uses OpenCNAM [https://www.opencnam.com/ ]. Note: OpenCNAM's Hobbyist Tier (default) only allows you to do 60 cached Caller ID lookups per hour. If you get more than 60 incoming calls per hour, or want real-time CallerID information (more accurate), you should use the Professional Tier. If you'd like to create an OpenCNAm Professional Tier account, you can do so on their web site: https://www.opencnam.com/register
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It executes an HTTPS GET, passing the caller's number as an argument to retrieve the correct name.
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Host: Hostname or IP of lookup source
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