• A subcategory of Category:Pages with IPA (if this is a red link, create it with the content {{IPA language category}})
• Category:IPA template errors – added if more than one parameter is given and the first is an invalid language tag
• Category:Pages including recorded pronunciations – added if the transcription has audio

These are added only in Module:Category handler's default namespaces. If |debug=yes is given, the categories that would be added are shown as links, no matter the namespace. This is for testcases only.