This is the optimized implementation for WMA 2.0, which provides classes that allow Java applications to access CBS functionality on a mobile device.

## CBS Implementation

The CBS has its own `Protocol` implementation that calls the native platform's CBS functionality.

- The CBS URL connection string does not support a designated host.
- The CBS `Connector.open()` will throw an `IOException` if an attempt is made to open for `WRITE`, since it is an inbound-only protocol.
- Attempts to call `send` will throw an `IOException`.

## Sending Messages to a CBS Port

CBS support is only available for inbound messages. The rules for fragmenting large messages and the basic payload types for GSM 7-bit text, UCS-2 text, and binary messages are the same for CBS and SMS messages.

@since WMA 2.0