Is VoIP the same as cloud?

No. VoIP stands for “Voice over Internet Protocol” and refers to voice communication over the internet (Internet phone calls).
The cloud refers to internet-based computing where data and services are stored and accessed remotely.
VoIP can be hosted on the cloud, but they are not the same thing.
Office 365, Gmail, Salesforce, Ebay, and almost everything we use is cloud servcies.