404. That’s an error.
The requested URL /add?source=atgs&feedurl=http%3A%2F%2Fwww.trcb.com%2Frss%2FArticle%2FDifferentiate-between-Call-Forwarding-and-Call-Screening-79312.xml was not found on this server. That’s all we know.
/add?source=atgs&feedurl=http%3A%2F%2Fwww.trcb.com%2Frss%2FArticle%2FDifferentiate-between-Call-Forwarding-and-Call-Screening-79312.xml