How to change settings in in Skype for Business on iPhone?

You can follow this tutorial to change settings in Skype for Business on iPhone:

1. Start Skype for Business and sign in. You see a list of chatting sessions that you had with colleague from your work place.

2. Tap on your thumbnail picture near the top left corner of the screen. You see a list of options displayed.

3. Tap on Settings. You see a list of settings displayed.

CALLS AND MEETINGS
   Phone Number -
   Mobile Integration: On
      Allow calls from the lock screen and logs calls on your device
   
REQUIRE WI-FI FOR
   Voice: Off
   Video: On
   Meeting Content: On
      When off, you can get calls over your data connection (possible
    changes and lower quality).
   
MY CREDENTIALS
   HTTP Proxy: ...
   Exchange: ...

ACCESSBILITY
   TTY: off
   
OTHER
   Logging: On
   Push Notifications: Supported
   About: Version 6.15...

4. Tap on the any setting to change it.

The picture below shows you how to change settings in "Skype for Business" on iPhone:

⇒ Send Log Files from Skype for Business on iPhone

⇐ My Profile in Skype for Business on iPhone

⇑ Skype for Business on iPhone

⇑⇑ Skype - Frequently Asked Questions