[WebRTC button does not work on Chrome android only on Chrome Windows.]

I have already changed the condition in the pbx.xml 
file and rebooted the PBX and the problem still 
continues.

[WebRTC button does not work on Chrome android only on Chrome Windows.]

Vodia version 66.0.2 multitenant 

https://tubiznesfon.cloud/usr_callbutton.htm?domain=2&trunk=13&line=c6a9443b

this is the button link.

[WebRTC button does not work on Chrome android only on Chrome Windows.]

WebRTC button does not work on Chrome android only on Chrome Windows. Message: ERROR: undefined DISCONNECTED