Hi Jose,If you have an Apple IOS 7 device and the application yes it should work fine with an SX20 locally even without being in a call as long as you display a presentation.I recommend you read the FAQ page here https://supportforums.cisco.com/docum...

Hi Jose,The far end would also need to be a Cisco endpoint with intelligent proximity to use the Cisco proximity app remotely.  The application relies on ultrasound from a Cisco endpoint in order to pair (and wifi access with connectivity to the code...

Hi Jose,The Cisco Proximity app requires a Cisco endpoint that supports intelligent proximity (MX200 G2, MX300 G2, MX700, MX800, SX10, SX20 and SX80).RegardsJohn