Webex Call , Android Application


I want to make a call with Webex: I tried by URI not worked. So I try to install the Cisco Webex Android application, but the problem is the Android version is 4.0, Android version not supported, can you please help or give me a solution,

NB : Call tested with GVC3202 version 64 and versio 69 beta ( i have 10 conference system GVC3202)
Thank you