Will my contacts know I'm using a 2nd Phone Number when I call or text them?

No, your contacts won't automatically know you're using a 2nd Phone Number when you interact with them. Here's why:

• Caller ID: When you call someone with your 2nd Phone Number, they'll only see your chosen 2nd Phone Number displayed on their phone, not your personal number. This keeps your information private and allows you to manage different communication channels separately.
• No notifications: Second Phone Number App doesn't send any automated messages to your contacts informing them you're using the app. So unless you explicitly share your 2nd Phone Number with them, they won't know your calls or texts originate from there.

Remember, even though your contacts won't automatically know you're using a 2nd Phone Number, it's always good practice to be transparent about your communication methods if necessary, especially for personal or professional scenarios.

Additional points to consider:

• Some countries or regions might have regulations regarding caller ID and anonymity. Always comply with local laws when using Second Phone Number App.
• Be mindful of potential spam filters as some recipients might have stricter settings that could flag unknown numbers.