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Changing the WebRTC (Web Real-Time Communication) value in Selenium involves modifying the browser's configuration options. WebRTC settings are not directly exposed through Selenium WebDriver, so you need to use browser-specific options or preferences.

Below are examples for changing WebRTC settings in Chrome and Firefox using Selenium in Python. Keep in mind that the availability of certain options may vary depending on the browser version, and these examples may need adjustments based on your specific requirements.

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

chrome_options = Options()

# Disable WebRTC
chrome_options.add_argument('--disable-webrtc')

# Other options (customize as needed)
# chrome_options.add_argument('--use-fake-device-for-media-stream')
# chrome_options.add_argument('--use-fake-ui-for-media-stream')

driver = webdriver.Chrome(chrome_options=chrome_options)

# Your Selenium script...

driver.quit()

In this example, --disable-webrtc is used to disable WebRTC. You can explore other Chrome command-line options related to WebRTC here.

Firefox

from selenium import webdriver
from selenium.webdriver.firefox.options import Options

firefox_options = Options()

# Disable WebRTC
firefox_options.set_preference('media.peerconnection.enabled', False)

# Other preferences (customize as needed)
# firefox_options.set_preference('media.navigator.streams.fake', True)
# firefox_options.set_preference('media.navigator.permission.disabled', True)

driver = webdriver.Firefox(firefox_options=firefox_options)

# Your Selenium script...

driver.quit()

In this example, media.peerconnection.enabled is set to False to disable WebRTC in Firefox. Additional preferences can be adjusted based on your needs. You can find more Firefox preferences related to WebRTC here.

Remember that changing browser preferences may have implications on the behavior of your application, and modifying settings like WebRTC should be done responsibly and in accordance with the terms of service of the websites you are interacting with.

To emulate mouse wheel scrolling and keystrokes in Selenium WebDriver with Node.js, you can use the Actions class to perform these actions. Here's an example that demonstrates scrolling and sending keystrokes:

const { Builder, By, Key } = require('selenium-webdriver');

(async function example() {
  // Create a new instance of the WebDriver
  const driver = await new Builder().forBrowser('chrome').build();

  try {
    // Navigate to a webpage
    await driver.get('https://example.com');

    // Perform mouse wheel scrolling
    await driver.actions().move({ x: 0, y: 0 }).sendKeys(Key.PAGE_DOWN).perform();
    await driver.sleep(1000); // Sleep for 1 second to see the effect

    // Perform keystrokes in an input field
    const inputField = await driver.findElement(By.css('input[type="text"]'));
    await inputField.sendKeys('Hello, this is some text.');
    await driver.sleep(1000); // Sleep for 1 second to see the effect

  } finally {
    // Close the browser window
    await driver.quit();
  }
})();

- driver.actions() creates an instance of the Actions class.
- move({ x: 0, y: 0 }) is used to position the mouse at coordinates (0, 0).
- sendKeys(Key.PAGE_DOWN) performs a mouse wheel scrolling action. You can replace Key.PAGE_DOWN with other keys or combinations according to your needs.
- sendKeys() is also used to input text into an input field. The inputField variable is a reference to the input field on the webpage, and sendKeys() is called to type text into it.

Make sure to replace the URL in driver.get('https://example.com') with the URL of the webpage you are working on, and adjust the CSS selector for the input field according to your webpage's structure.

Additionally, you may need to install the selenium-webdriver package if you haven't already:

npm install selenium-webdriver

If we are talking about disabling Telegram for Android, you need to go to "Data and Memory" and under "Proxy" find "Proxy settings". Here, under "Connections", you should disable the use of a proxy server. If we are talking about disabling Telegram for iOS, then in the "Data and memory" item, you should select "Proxy", then go to the "Use proxy" column, and then move the slider to the "Off" position.

You need to open the settings menu, go to "Data and disk", and then - "Proxy settings". There you can enter the address, port number of the intermediate server, as well as username and password for authorization (if necessary).

You need to go to "Settings", click on "WiFi", select the current network to which the smartphone is connected, tap on "Proxy settings". And then - deactivate the item.