Prices can vary greatly based on features needed, support and customization requests. Knowing what you're after helps vendors give you the most fair price.
International Calling
Voice
Email
Call Log Reports
Dashboard
Call Analytics
Custom Forms
Campaign Builder
Knowledge Base
Storage
Database Maintenance
Phone Support
Email Support
Forum
Training/Tutorial
Line Limit
HD Premium
Price not provided by vendor
Prices can vary greatly based on features needed, support and customization requests. Knowing what you're after helps vendors give you the most fair price.