Hey Jeong,
I think there is a bit of contradiction here, but I want to help as best I can.
What would you want to use to dial? What is the outcome your client needs/wants? It's likely best to go from the end result back with this one.
Manually dialling would generally mean an agent, and IVR is traditionally an inbound function when a customer contacts you.
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Lawrence Drayton
Prvidr Pty Ltd
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