Android phones with native SIP client? I've heard from various sources that Android does have SIP support built in starting around version 2.3 Gingerbread, but I yet to see a single phone actually having it in its setup menus.

Just returned from a B&amp;M store having played with a few recent phones from HTC and Samsung (all of them ICS, earlier I've checked a few Android 2.* phones) - and NONE displayed any traces of SIP support whatsoever.

I understand that carrier bundled phones may have SIP disabled on purpose, but why disable SIP in the unbundled phones retailing for $400-600?

Is there out there some sort of an official list of Android phone models having SIP support available off the shelf?
SIP comes directly with the Android system, as you said, starting with Gingerbread. You find it in the system settings: Call Settings, at the very end: Internet Call Settings:



For more details, you can also check with the page Android SIP Client Configuration and Review, which explains you all the details.

As it comes with the Android System itself, all devices with Gingerbread or higher should have it.