SafariTel can offer you the cheapest rates with excellent quality, even on slow internet connections.
Features:
• Internet Calls via Wi-Fi, 2G / 3G / 4G
• SIP-based softphone with exceptional voice quality
• Proprietary compression technology makes it usable on any kind of internet connection
• Unique anti-block solution
• Flexible integration with your phone book contacts
• Screen display for your call history and balance