The Pocket CRM is a connected application and network need to be setup and configured before the application can launched. .
To setup network on the device the APN (Access Point Name) for Internet must be defined. This is normally already done from by the operator when the phone is purchased, but if it is not please first check if your operator has a online OTA (Over the Air) configuration service. Most of the operator provides such a service. To configure the APN manually, please check your phone manual and your operator settings.