Yeah, the brand that developed PTT and iDEN in the US, with Nextel, who was the only provider who offered PTT or iDEN, and was the only phone you could get from Nextel for many, many years.

Do some other companies offer PTT in the US now? Yeah, but the identity remains with Nextel and the iDEN phones that Motorola sells through them. Regardless, that's why I said "at least on the Sprint/Nextel phones in the US". And the only reason I brought it up at all was to avoid the converse of this exact stupid argument.