Ask HN : Does pricing difference makes a better reason to face the competitors?

Hi ,

I am working on a startup idea, Its " Google Voice for customer support " .

Recently someone launched a similar service and they are charging for incoming calls and even the outgoing calls are very expensive.

I am well connected in VoIP sector and can offer better prices and give free incoming calls option for this service .

Do you guys think only with better pricing I can fight with the competitors as most of the features are similar ?