How to extract specific Order.name from params[:order] in the controller?

Question

Ruby on Rails

Using the form, I pass parameters such as:
id, name, post_cod, phone to the controller.
How can I specifically isolate, for example, phone?
It is necessary, in addition to saving the entire set of parameters in Order.new, to save one more parameter separately in another model.
It is the working syntactic construction that is of interest.