Main Page | See live article | Alphabetical index In telecommunication, the term ringaround has the following meanings: 1. The improper routing of a call back through a switching center already engaged in attempting to complete the same call. 2. In secondary surveillance radar, the presence of false targets declared as a result of transponder interrogation by side lobes of the interrogating antenna. Source: from Federal Standard 1037C This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.