mathi8vadhanan
1000+ Head-Fier
I did not say, airplay will not work without networks. I said, it may not be Airplay P2P (2.4 GHz), it might be using Airplay Direct (Bluetooth).
When on hotspot mode, have you tried to airplay with bluetooth turned-off?
https://chambersdaily.com/bradleychambers/2014/9/19/technical-details-of-peer-to-peer-airplay
What the article said is about peer to peer airplay, but I don't think airplay by personal hotspot should be count as p2p airplay.
Some examples that can be found on google mentioned using personal hotspot to airplay. I found one using iphone 4s(no 5 GHz) streaming video(exceed bandwidth of bluetooth) to apple tv.
It should be streaming by personal hotspot with 2.4 GHz.
Yes, information about Airplay is very thin. Also, the examples you mentioned are Airplay to Apple TV. I don't think it works the same way for airplay enabled devices.
Libratone had two lines of their airplay devices - Wifi/Bluetooth and Wifi/PlayDirect. Wifi/PlayDirect devices did the routing function, to cirucmvent the apple restriction, when using iphone's hotspot function.
http://support.libratone.com/hc/en-us/articles/206802525-PlayDirect-and-internet-access-simultanously
I believe poly falls under the Wifi/Bluetooth category, since it can't do routing function. Hope chord can post a video or photo with iphone streaming to poly on hotspot mode and bluetooth disabled.