SIP User Agent related settings.
Array of STUN servers to try. The library will try to resolve and contact each of the STUN server entry until it finds one that is usable. Each entry may be a domain name, host name, IP address, and it may contain an optional port number. For example:
- "pjsip.org" (domain name)
- "sip.pjsip.org" (host name)
- "pjsip.org:33478" (domain name and a non-standard port number)
- "10.0.0.1:3478" (IP address and port number)
When nameserver is configured in the pjsua_config.nameserver field, if entry is not an IP address, it will be resolved with DNS SRV resolution first, and it will fallback to use DNS A resolution if this fails. Port number may be specified even if the entry is a domain name, in case the DNS SRV resolution should fallback to a non-standard port.
When nameserver is not configured, entries will be resolved with pj_gethostbyname() if it's not an IP address. Port number may be specified if the server is not listening in standard STUN port.