CSipSimple is a Voice over Internet Protocol (VoIP) application for Google Android operating system using the Session Initiation Protocol (SIP).
Developed by Regis Montoya
Apps available for
Android
iPhone
Android Tablet
iPad
CSipSimple VS Talkatone
Talkatone is a user-friendly VoIP app ideal for casual users who want free calling and texting, while CSipSimple is a more advanced, open-source SIP client suitable for tech-savvy users looking for customization and flexibility.
CSipSimple
Pros:
Open-source SIP client
Supports a wide range of codecs
Highly customizable settings
Can integrate with various SIP providers
Good call quality with low latency
Cons:
Steeper learning curve for beginners
Less intuitive interface compared to some competitors
Limited support for non-SIP protocols
Talkatone
Pros:
Free voice calling and texting over Wi-Fi or cellular data