Web Service call from tcl

[Pramila15]

Here is the code, I am trying to call webservice to add i, j values, but it returns zero result (failed to send parameters i and j)

package require WS::Client

::WS::Client::GetAndParseWsdl "

http://localhost:8080/CalculatorWSApplication/CalculatorWS?WSDL"

set i 5
set j 2
set inputs [list i $i j $j]
set result [ ::WS::Client:oCall CalculatorWS add $inputs]
set res [dict get $result return]
puts "result is :$res"

can you please help me how to send this i and j parameters to webservice method?
Thanks.