I am a telemarketer. How can I track my customers by SMS after I make a phone call?

Hello, this is XXX who called you just now. Thank you for taking my call. I just entered this industry, and there may be some shortcomings in communicating with people. Thank you for not hanging up. I'm glad to serve you, and I've worked hard on my professional knowledge. Even without cooperation, I hope we can become friends. Do you think I can add you to WeChat? My mobile phone number is my VX number.

2. Professional Edition

Hello, this is XXX from XX Company who just called you. Thank you for your recognition. I am good at XXX. You can add my contact information if it is convenient. Even if you don't need it now, you can contact me when you need it in the future or when your friends need it, or if you need any advice on XXX.