5.1. More on Making Calls 
In this guide the term “Wi-Fi phone" is used to describe phone calls made over Wi-Fi with the OpenScape Mobile Pro application. The term “cell phone" is used to describe phone calls made over the cellular network with the Android phone native application. The term "desk phone" is used to describe your OpenScape Voice IP phone (typically an OpenStage or OptiPoint desktop phone).
CAUTION
Do not use OpenScape Mobile Pro to make emergency calls; use your cell phone instead,
as it
provides more accurate location information to the emergency response
center. Emergency calls made with OpenScape Mobile Pro may be routed to the
incorrect response center.
INFO:
The person you call, sees your desk phone number as the calling number.
INFO:
Android devices’ native keypad, contacts and journal do not offer an option to initiate
a video
call. To make a video call, start a voice call and then add video. It is
possible to start video calls from OpenScape Mobile Pro (through
Call History and Dialpad),
since it has its own call log screen.
INFO:
In case you are using a Soft client (e.g, OpenScape UC Web client, Fusion, etc.)
and you have the Auto-Pilot option enabled, then the user's desk phone (if
present) will be used as an associated device to make a call.
‣ Parent topic: Section 5. Handling Calls