CSipSimple is an open source SIP client for Android that allows you to make VoIP calls over Wi-Fi or mobile data. It supports common SIP features like call transfer, call forwarding, call waiting, 3-way conferencing, etc.
CSipSimple is an open-source SIP client for Android devices that enables users to make and receive VoIP calls over Wi-Fi or mobile data. Some key features include:
As an open source Android SIP client, CSipSimple offers a high level of functionality and customization options for free. It is an excellent choice for any Android user looking to make VoIP calls via a Wi-Fi or mobile data connection.
Here are some alternatives to CSipSimple:
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