I am looking in the admin guide in the section pertaining to requestValidation. It seems fairly well documented, except for what value goes in for x?
<voIpProt.SIP.requestValidation voIpProt.SIP.requestValidation.x.method="source" voIpProt.SIP.requestValidation.x.request="INVITE" />
1 seems like the obvious beginning. When would I use 2?