private void updateCellularInformation()

in archived/PhoneCall/cs/Helpers/CallingInfo.cs [195:298]
85 lines of code
18 McCabe index (conditional complexity)

        private void updateCellularInformation()
        {
            PhoneLine line = currentPhoneLine;
            PhoneLineCellularDetails cellularDetails = line.CellularDetails;

            //Update SIM slot index
            currentSIMSlotIndex = cellularDetails.SimSlotIndex;

            //Update display name
            currentDisplayName = line.DisplayName;

            //Update display Color
            currentDisplayColor = line.DisplayColor;

            //Update voicemail number
            currentVoicemailNumber = line.Voicemail.Number;

            //Update voicemail count
            currentVoicemailCount = line.Voicemail.MessageCount;

            //Set default operator name
            currentOperatorName = "N/A";

            //Update sim state
            PhoneSimState simState = cellularDetails.SimState;
            switch (simState)
            {
                case PhoneSimState.Unknown:
                    currentSIMState = "Unknown";
                    break;
                case PhoneSimState.PinNotRequired:
                    currentSIMState = "Pin Not Required";
                    break;
                case PhoneSimState.PinUnlocked:
                    currentSIMState = "Pin Unlocked";
                    break;
                case PhoneSimState.PinLocked:
                    currentSIMState = "Pin Locked";
                    break;
                case PhoneSimState.PukLocked:
                    currentSIMState = "Puk Locked";
                    break;
                case PhoneSimState.NotInserted:
                    currentSIMState = "No SIM";
                    break;
                case PhoneSimState.Invalid:
                    currentSIMState = "Invalid";
                    break;
                case PhoneSimState.Disabled:
                    currentSIMState = "Disabled";
                    break;
                default:
                    currentSIMState = "Unknown";
                    break;
            }

            //Update network state
            PhoneNetworkState networkState = line.NetworkState;
            switch (line.NetworkState)
            {
                case PhoneNetworkState.NoSignal:
                    if ((bool)line.LineConfiguration.ExtendedProperties["ShouldDisplayEmergencyCallState"])
                    {
                        currentNetworkState = "Emergency calls only";
                        break;
                    }
                    else
                    {
                        currentNetworkState = "No Service";
                        break;
                    }

                case PhoneNetworkState.Deregistered:
                    currentNetworkState = "Deregistered";
                    break;
                case PhoneNetworkState.Denied:
                    currentNetworkState = "Denied";
                    break;
                case PhoneNetworkState.Searching:
                    currentNetworkState = "Searching";
                    break;
                case PhoneNetworkState.Home:
                    currentNetworkState = "Connected";
                    currentOperatorName = line.NetworkName;
                    break;
                case PhoneNetworkState.RoamingInternational:
                    currentNetworkState = "Roaming International";
                    currentOperatorName = line.NetworkName;
                    break;
                case PhoneNetworkState.RoamingDomestic:
                    currentNetworkState = "Roaming Domestic";
                    currentOperatorName = line.NetworkName;
                    break;
                default:
                    currentNetworkState = "Unknown";
                    break;
            }

            //Cell info update complete. Fire event
            if (CellInfoUpdateCompleted != null)
            {
                CellInfoUpdateCompleted();
            }
        }