Reduce warnings.

      // To/From header-fields to be used if the caller will release the session

      var To         vc_caller_To     := c_empty_To;

      var From         vc_caller_From    := c_empty_From;

      var template(omit) Authorization vc_authorization;

      var Authorization vc_authorization;

      // variables for storing default references

      var default     vc_default;

                vc_callee_From := {fieldName := FROM_E, addressField := vc_caller_To.addressField, fromParams := vc_caller_To.toParams};

                if (isvalue(p_Request.msgHeader.authorization)) {

                    vc_authorization := p_Request.msgHeader.authorization;

                    vc_authorization := valueof(p_Request.msgHeader.authorization);

                }

            } // end f_setHeadersOnReceiptOfREGISTER