|group_id||✓||check under Phonebook Groups for this integer id. It is shown when you click on the group name.|
a descriptive text message to the user, or redirects to a URL of your choice as described below.
This call allows you to make a group in your user phonebook available to the public. The call is only available if your phonebook has the option
Members can add themselves set.
You would typically make the URL specified above available as part of an HTML form, with the other parameters submitted as form parameters.
Note that if you want to use a
fail_url, you have to specify both. By setting these to pages on your own site, you can provide a more attractive result to the user.