How to insert someone else's phone number when texting! For example, if I send a text message to A, how can I insert B's phone number?

Press and hold B's phone number to copy, and then send a text message as usual. When you need the number of B, just press and paste and continue writing. The above is a smart machine. Non-smart phones can press the left soft key with the insert function. Some mobile phones can only remember to write down the number when inputting information, and then write down the number with words or bring your own pen and paper, and write it when necessary. I hope it will be useful to you and adopted. Thank you.