What IVR does american airlines use?

What IVR does american airlines use?

Apparently, American Airlines was still using Tellme Networks after it was acquired by Microsoft in 2007 (Page on Microsoft). In fact, the domain name tellme[dot]com is currently, incorrectly forwarding to Bing Developer Center: Speech. However, according to Wikipedia, Microsoft divested its Tellme Networks interactive voice response service to 24 7 inc (Intuitive Customer Experience – Mobile, Speech, Web) in early 2012. It is not clear whether American Airlines is currently using Microsoft Tellme, 24 7 inc, or something else.