Arad.SMPP by Ammar Heidari

<PackageReference Include="Arad.SMPP" Version="1.0.9" />

 LicenseManager

public static class LicenseManager
Manager for library license.
public static bool IsTrial { get; }

Indicates whether the library is in trial mode.

public static string Status { get; }

Returns actual staus of the license. It helps to distinguish evaluation license from full license.

public static bool SetLicense(Stream stream)

Sets a license.

public static bool SetLicense(string licenseContent)

Sets a license for Arad.SMPP library.