add more fields to user registration

i am trying to register a new user over openfire , so far i am able to register it over server but i want to add some more fields like phone , address in the user registration form

as of now there is only a provision of setting username , fullname , password and email at the time of registering a user over server

but i want to add more fields , how can i do that ?

i tried followin code , but i dont know how to sent fromToSend to the server as a packet or something ?

                       Form formToSend = new Form(Form.TYPE_FORM);

                              FormField username = new FormField("username");

                              username.setType(FormField.TYPE_TEXT_SINGLE);

                              formToSend.addField(username);

                              FormField name = new FormField("name");

                              name.setType(FormField.TYPE_TEXT_SINGLE);

                              formToSend.addField(name);

                              FormField password = new FormField("password");

                              password.setType(FormField.TYPE_TEXT_PRIVATE);

                              formToSend.addField(password);

                              FormField email = new FormField("email");

                              name.setType(FormField.TYPE_TEXT_SINGLE);

                              formToSend.addField(email);

                              FormField phone = new FormField("phone");

                              phone.setType(FormField.TYPE_TEXT_SINGLE);

                              formToSend.addField(phone);

i am taking referece of folloing xml stanza

<form_type>

  <name>jabber:iq:register</name>

  <doc>XEP-0077</doc>

  <desc>Standardization of fields related to registration use case.</desc>

  <field

      var='username'

      type='text-single'

      label='Username'/>

  <field

      var='name'

      type='text-single'

      label='Full name'/>

  <field

      var='password'

      type='text-private'

      label='Password'/>

  <field

      var='email'

      type='text-single'

      label='Email address of the user'/>

  <field

      var='phone'

      type='text-single'

      label='Mobile Phone'/>

</form_type>