What is the best option for making calls out of Pipedrive

1. Kixie
2. Aircall
3. Other
???

I currently use the iPhone app and it’s awesome. But I am hiring 1 or 2 people to make Dials and it would be awesome to have it set up correctly and ready to go.

Also

Has anyone figured out a simple version of using Pipedrive like the software Outreach for cadences?