Linphone
MicroSIP
Zoiper
Jitsi
Skype
Sipdroid
Sipnetic
MizuDroid
textPlus
TextNow
TextMe
Talkatone
Dingtone
Freetone
Nextplus
Google Voice
Linphone textPlusBased on our record, Linphone seems to be more popular. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Well I can tell you that any SIP program can do this, one that comes to mind is Linphone. But you do need a provider. Almost all providers deal with UDP. You might be able to find one that transmits over tcp but that’ll be a very small list. TCP isn’t reliable for VoIP, for media anyway. At best you’ll find one that encrypts the signaling over TLS, which is TCP. But audio, even if encrypted too, is done over UDP.... Source: over 1 year ago
Does Linphone (https://linphone.org/) not meet that need of cross platform (website claims versions for all major OS'es) and open source (https://gitlab.linphone.org/BC/public/linphone-desktop)? - Source: Hacker News / over 1 year ago
Similarly, you can use any SIP (VoIP) provider (e.g. VOIPo Cloud), and configure the SIP account details in your native phone app. This way you will also be able to use a SIP softphone on your computer (e.g. LinPhone on Linux or Telephone on Mac), or even a real SIP phone in your home. Depending on your SIP plan you may or may not be able to make international calls this way. Source: over 2 years ago
I heard on RFD Fonus is using linphone.org to code their service. Source: almost 3 years ago
MicroSIP - MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack.
TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
Zoiper - Cross-platform VoIP softphone dialer for SIP and IAX systems
TextMe - TextMe is a free calls and messaging application at both local and international levels.
Jitsi - Open-source video calling and chat platform.
Talkatone - Android App on. Google Play. Stop paying for cell minutes, texts & landlines; Turn your iPad or iPod touch into a phone; Call/Text even in areas with bad cell coverage; Call/Text when travelling without paying for expensive international minutes.