UPoC protocol
In Network Configurator, you can select inbound message encoding, for example, Big5. The system engine converts inbound data from Big5 to UTF-8 before pre-SMS (TPS Inbound data). The Read TPS in the UPoC Protocol Properties dialog box is called before engine encoding conversion.
The Read TPS has to handle raw data and convert all of the messages into Big5. This is because the engine thinks the inbound data is Big5. In the Traditional Chinese environment, the Read TPS reads Big5 data and sends Big5 data to the engine.
The outbound Write TPS of the UPoC protocol is called after thread encoding translation. It is suggested that you remove all string processing from the protocol UPoCs.