exosip官网:https://savannah.nongnu.org/projects/exosip
2010 manual
https://code.google.com/archive/p/rxwen-blog-stuff/downloads
2010 manual
https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/rxwen-blog-stuff/exoSIP%20User%20Manual.pdf
官方api解释
https://www.antisip.com/doc/exosip2/modules.html
源码下载:
https://www.antisip.com/download/exosip2/
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