Having owned a Buick LaCrosse and now the Envision the iPhone can be finicky...sometimes a name has to be pronounced differently to get it to work, for example if i want to call work, the name is NOC. However I can't say, Siri call NOC. I have to say, Siri, call N O C (saying each letter individually). It's an iPhone Siri quirk and not an Intellilink quirk. If there's multiple listings for the same name then the system should present them on the screen and one would choose from those.