ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Callmama - Get cheap international calling, international virtual number, Call Mama Gives an added advantage to send message and make calls to non-user of Callmama App.
Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
CallHippo - Easy to use Phone System with World-Class Support
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.
KrispCall - Virtual cloud phone system for business