Softphone Software

Bitrix24
  386
100% free CRM, collaboration and communication tool suite
Freshcaller
  10
Cloud call center for customer support & sales
3CX
  196
Hosted PBX with CRM integration and mobile apps
Zoiper
  62
Cross-platform VoIP softphone dialer for SIP and IAX systems
VirtualPBX
  21
Trusted VoIP for any office, anywhere.
eVoice
  7
Small business phone software
Ring4
  7
Second phone number app for texting and calling
RingOver
  6
100% cloud phone for startups and SMBs