$1 USD per user (one-time) Please refer https://www.ringbyname.com/plans-pricing/
Business telephony integration for Salesforce through an AppExchange Plugin. Make and receive phone calls using your business phone number directly through Salesforce. Contact details screenpop on inbound calls and click-to-call for outbound calls.
Requires an active RingByName user account.<BR><BR>Users can transfer their business phone numbers to RingByName for no charge. RingByName is a state and FCC-licensed telephony services provider with more than a decade of experience. RingByName ports-in thousands of numbers monthly with all the leading domestic and international providers. RingByName can port-in or provide new phone numbers through the United States and Canada and in nearly 75 additional countries.