Yes, both Salesforce and RingCentral Office offer a Free Trial.
Salesforce is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
RingCentral Office is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Salesforce Starts at $25/User/Month whereas for RingCentral Office Starts at $19.99/User/Month when Billed Yearly.
Some top alternatives to Salesforce includes Salesforce Sales Cloud, Pipedrive, Thryv, Vendasta, Hubspot Marketing Hub, Dynamics 365 Marketing, ClickUp, Zoho CRM, HubSpot CRM, Microsoft Dynamics 365 for Sales, Netsuite CRM, Keap, Wisdom CRM, SalesCRM, SimpleCRM and Zoho CRM Plus.
Some top alternatives to RingCentral Office includes RingByName, VoIPstudio, Vonage Business, 3CX, 4PSA VoipNow, Infobip, Voxloud, MightyCall, Ringover, Voxbi and AT&T Office@Hand.