Which cloud software to choose for a call center?

Question

Call centers

You need to choose a suitable cloud service for the call center (support). Large companies do not really make contact.
The problem in brief:
- Call center in the Philippines
- Need the ability to listen to recordings of conversations
- Need toll free (preferably attach an existing one)
- Call center staff 4 people, change each other in shifts.
Can you please tell me the right manufacturer?

Answer 1

Why doesn't Oktell suit you? Just the service "Virtual PBX" they provide.