don't know about twilio but with vonage I had to link the number to the app.. maybe you want to check your dashboard for something similar https://cdn.discordapp.com/attachments/1211484481848873020/1320526884324380694/image.png?ex=6769ebff&is=67689a7f&hm=a0b9eed4ed8c3fc1f7a557eb3632413831a6613223499651b878338c37d4caa8&