Softphone Software

Bitrix24
  315
Paquete gratuito de herramientas de gestión, comunicación y colaboración.
3CX
  165
Hosted PBX with CRM integration and mobile apps
Zoiper
  55
Cross-platform VoIP softphone dialer for SIP and IAX systems
VirtualPBX
  20
Tools To Connect Everyone, Everywhere.
eVoice
  5
Small business phone software