AltiGen MAXCS 7.0 MaxMobile User Guide for Android Phone - Manual (Page 10)

6 MaxMobile Communicator Android Edition
Note: If your phone runs on mobile networks that do not support
concurrent voice and data, you can make the first call through
MaxMobile. After the call is initiated, since data connection is now
unavailable, call handling can only be performed through the
system dialpad.
When you don’t have access to MaxMobile call handling buttons, you can
send DTMF digits through the Android dialer to perform call handling.
Instructions will appear on the screen, like this:
Logging Out
To log out from MAXCS, go to Menu > Logout. Your mobile phone is
disassociated with the PBX extension. If an IP phone was previously
registered with this extension, the IP phone will now associate with this
extension.
Launching MaxMobile
To launch MaxMobile when you are logged out, go to your phone’s Home
page, and tap the MaxMobile icon: