1. ClickToCall API Request

2. API to request for ClickToCall status

3. API to request for Call Details

4. API to Blacklist any number in an account

5. API to remove a blacklisted numberĀ 

6. API to initiate a Follow-up call

7. API to Edit any Follow-up call details

8. API to request Report for Follow-up calls data

9. API for OBD/Outbound Call

You may access all the Voice APIs documentation here.