Prerequisites

a. Create an account on Telnyx

Using the referral code, get $20: https://refer.telnyx.com/0nx0o

Note: Telnyx doesn't allow gmail, yahoo, hotmail, duck.com or any known burner emails. Use a custom domain or an alias from SimpleLogin.fr or mail.com. Also disable your VPN as your account will get banned immediately. Instead use your phone's LTE to tether and get a temporary cell IP.

Search and buy a phone number for $1 (or $2) per month
- Numbers > Search & Buy Numeber b. Generate an API key
- API Keys > Create API Key

Note: You do not need to create a Messaging Profile under Messaging and attach it to your number. The web app will do it for you when you enter in the API key and hit save for the first time.

Cost:

$0.005/min for a outbound voip call.

$0.0025/sms sent.

(Inbound VoIP and sms's are free)

Example: 1000 calls + 1000 sms's per month (outbound) would cost (5+2.5=$7.5/month)