Kasapoole vs Abto multi account sip dialer

With Kasapoole, you can use any kind of phone to call any kind of phone, anywhere in the world. That’s because we have optimized your international calling by connecting them through local phone lines saving you money and ensuring great calling quality. It’s just international calling as it should be.

ABTO Software's VoIP SIP softphone. Can be used to call sip numbers and landline numbers (if sip provider has this option). Features: voice calls; video calls; text chat (based on SIP MESSAGE request); works with all popular SIP servers, including Asterisk/FreeSwitch; make direct calls between clients without SIP server; allows to use UDP/TCP/TLS protocols for SIP transport; ability to make secure calls using SRTP; supports STUN/ICE; IPv6 support; CallKit - native incoming call UI and system integration of VoIP calls; 2 simultaneous calls; call conferencing; attended transfer; 4 concurrent accounts.