It is wired because the type of $telephonenumber seems to be string. But in the official sample, it uses Int64. As we are mainly responsible for general problem of Microsoft Teams, your question seems more related to script. I will add office-teams-app-dev to get further support....
"Wrapping up its annual meeting Sunday in New Orleans, the 9,000 delegates to the National Education Association crowded special kiosks to telephone and e-mail members of Congress, asking them to amend or reject provisions of Bush's No Child Left Behind education reform law. [...] The ...
Import DNS records from a .csv or .txt file Import Telephone numbers from CSV file into Active Directory 2008 Importing / Exporting scheduled tasks from Server 2008 t
$email_to = 'xxxxx@xxxxxxx.co.uk'; $email_subject = 'Call back form'; // Set required fields $required_fields = array('fullname','email','telephone','comment'); // set error messages $error_messages = array( 'fullname' => 'Please enter a Name to proceed.', ...