The default dialer screen is displayed once gloCOM GO is started.
The call button in the dialer screen has three states depending on softphone registration status and connectivity status.
If the softphone is not registered and the button is yellow, calls still can be made if the callback option is configured.
There are three states gloCOM GO dialer can be in:
Green - Call can be made over SIP protocol (WiFi and Mobile Data Networks)
Yellow - Call can be made with Callback module (Mobile Data Networks)
Gray - Call can not be made (No Network Connections)
