title: Can I get a phone number by user id via Telegram Bot API?
body: <p>I am using <code>Telegram Bot API</code> for sending instant messages to users.
  I have installed <a href="https://www.nuget.org/packages/Telegram.Bot/" rel="noreferrer">nuget package</a>. This package is <a href="https://core.telegram.org/bots/samples" rel="noreferrer">recommend by telegram developers</a>.</p>
  <p>I have created a telegram bot and successfully got access to it by using code. When I send messsage to bot, bot gets some info about sender.</p>
  <p><a href="https://i.stack.imgur.com/RFYbS.png" rel="noreferrer"><img src="https://i.stack.imgur.com/RFYbS.png" alt="enter image description here" /></a></p>
  <p>I need the phone numbers of users to identify them in our system and send the information back to them.</p>
  <p>My question is Can i get a user phone number by <code>telegramUserId</code>?</p>
  <p>I'm doing it for user convenience. If I could to get a user phone number I should't have to ask for it from the user.</p>
  <p>Now my command like this:</p>
  <pre><code>debt 9811201243
  </code></pre>
  <p>I want</p>
  <pre><code>debt
  </code></pre>