PJSIP_AUTH_SRV_IS_PROXY: to specify that the server will authorize clients as a proxy server (instead of as UAS), which means that Proxy-Authenticate will be used instead of WWW-Authenticate.
The documentation for this struct was generated from the following file:
sip_auth.h
PJSIP Open Source, high performance, small footprint, and very very portable SIP stack
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