是否有任何配置可以在设备上启用 VOIP？或者这些方法确实表明我的设备不支持 VOIP？
最佳答案
我认为回答这个问题有点晚，但经过大量搜索后，我发现您应该使用任何 SipStack，因为如 here 所解释的那样:
Fusion SIP source code is specifically designed for use in embedded devices, has a small footprint and is completely ROMable and re-entrant. The Fusion SIP stack provides a simplified API for easy integration with the application and transport stack (TCP/IP/UDP).
并且在具体谈论 android 时，如 this question 的答案中所述:
All Android devices, which can connect to the Internet, support SIP.
After all SIP is just a protocol which requires connection to the Internet, and it's very similar to HTTP.
In order to work with SIP, you need SIPStack implementation - doesn't matter if it's 3rd party or it comes from Android API.
关于可以使用的 SipStacks 的例子，你会发现其中的一些像 PJSIP和 Doubango ，并且都存在于这个 question 中.
关于android - SipManager.isApiSupported() 和 SipManager.isVoipSupported() 返回 false，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7808048/