Custom SMS Camel SMPP Port

I am currently trying to send SMS using Camel SMPP, but I cannot send it to a specific destination port. Nothing actually happens on my SMPP server. Here is my current code in my cpu:

exchange.getOut().setHeader("CamelSmppAlphabet", Alphabet.ALPHA_8_BIT.value());
exchange.getOut().setHeader("CamelSmppDataCoding", 4);

short destport = 5000;
short srcport = 0;

Map<java.lang.Short, java.lang.Short> optParameters = new HashMap<java.lang.Short, java.lang.Short>();
optParameters.put(OptionalParameter.Tag.DESTINATION_PORT.code(), destport);
optParameters.put(OptionalParameter.Tag.SOURCE_PORT.code(), srcport);

exchange.getOut().setHeader("CamelSmppOptionalParameter", optParameters);

      

        
        
        
      

    

Am I doing something wrong? If so, how should I send my message to a specific destination port?

thanks for the help