AbtoVoIPClient
Call, chat, and video via SIP
Sviatoslav Volodymyruvych Litynsky Private Enterpreneur
iPhone Screenshots
Description
Make voice and video calls using SIP and landline numbers. Send text messages via SIP MESSAGE. Connect to various SIP servers like Asterisk or FreeSwitch. Enable direct client-to-client calls. Use UDP, TCP, or TLS for SIP transport.
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 popual 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/ZRTP;
supports STUN/ICE;
IPv6 support;
CallKit - native incoming call UI and system integration of VoIP calls;
2 simultaneous calls;
call conferencing;
attended transfer.