I have tried a few different methods to detect device presence which lets my ISY know who is home or away. The most reliable way is using tasker each device when I connect/disconnect from my home wifi. But, I don't want to install and configure tasker for everyone's device. We already have mobilinc installed on all of our devices, so it would be a simple feature to have a specific variable set/unset when the SSID of the device is set to a specific value.
Thanks,
Jim