When software updates are pushed to our Yealink handheld wireless phones, our ring tone goes back to the default ring. It appears, and I was told by a Weave rep, that any settings are restored to default. For example, we have auto-answer upon picking up headset turned off, but after a software update, the auto-answer is turned on. We'd like for our phones to have the settings saved and restored after software updates are pushed. Thank you.