Editing Interactive voice response (section)

=== Surveying ===
Some of the largest installed IVR platforms are used for televoting on television game shows, such as ''[[Pop Idol]]'' and ''[[Big Brother (TV series)|Big Brother]]'', which can generate enormous call spikes. The network provider will often deploy ''[[call gapping]]'' in the [[PSTN]] to prevent network overload. IVR may also be used by survey organizations to ask more sensitive questions where the investigators are concerned that a respondent might feel less comfortable providing these answers to a human interlocutor (such as questions about drug use or sexual behavior). In some cases, an IVR system can be used in the same survey in conjunction with a human interviewer.