Problems with Modal in Rails opening the same object

I'm maintaining an older Rails 3.2.22 app and I'm trying to add a modal to pop up with a simple form to add a note.

Here is my view (cut down for readability)

<% @assigned.each do |call| %>
          <%= link_to "Notes", '#ajax-modal', data: { toggle: "modal", target: "#note-modal" }, class: 'btn btn-small btn-inverse' %>
        <%= render 'layouts/note_modal', :call => call %>
<% end %>

Here is my modal app/views/layouts/_note_modal.html.erb

    <div id="note-modal" class="modal hide fade" tabindex="-1">
      <div class='modal-header'>
        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
        <h3 class="modal-title"><%= call.incident_number %> Notes</h3>
      </div>
      <div class='modal-body'>
        <div class="modal-body-content">       

  <%= form_for(@note, url: call_note_calls_path, html: {class: "form-inline"}) do |f| %>
                   <%= f.text_field :message, :maxlength => 255 %>
                   <%= f.hidden_field :call_id, value: call.id %>
                   <%= f.hidden_field :user_id, value: current_user.id %>
                  <%= f.button "Add Note", class: 'btn btn-info btn-small', data: {disable_with: "<i class='icon-spinner'></i>Posting..."} %>
                  <% end %></div>
    <div class="ajax-loader">
  </div>
  </div>
  <div class='modal-footer'>
    <button type="button" data-dismiss="modal" class="btn">Close</button>
  </div>
</div>

When I load the page and there are several calls I click on the notes link, the partial renders in a modal and I can submit a note. The problem is if I have 10 calls on the screen no matter which notes link I click on it adds a note to the first call on the screen.

Am I passing locals incorrectly? I know this code is inside of the block so it should pull the call object and pass it as a local to the partial in the modal but it's not.

Any help is greatly appreciated.