Polycom SOUNDPOINT SIP 3.1 - Manual (Page 169)

Configuration Files
A - 15
Alert Information <alertInfo/>
This configuration attribute is defined as follows:
Request Validation <requestValidation/>
This configuration attribute is defined as follows:
Attribute
Permitted
Values
Default Interpretation
voIpProt.SIP.alertInfo.x.value string to
compare
against the
value of
Alert-Info
headers in
INVITE
requests Null Alert-Info fields from INVITE requests will be
compared against as many of these
parameters as are specified (x=1, 2, ..., N)
and if a match is found, the behavior
described in the corresponding ring class
(refer to
Ring type <rt/> on page A-36 ) will
be applied.
voIpProt.SIP.alertInfo.x.class positive
integer Null
Attribute
Permitted
Values
Default Interpretation
voIpProt.SIP.requestValidation.x.
request
One of:
“INVITE”, “ACK”
, “BYE”
“REGISTER”,
“CANCEL”,
“OPTIONS”,
“INFO”,
“MESSAGE”,
“SUBSCRIBE”
“NOTIFY”,
“REFER”,
“PRACK”, or
“UPDATE” Null Sets the name of the method for which
validation will be applied.
WARNING: Intensive request validation
may have a negative performance impact
due to the additional signaling required in
some cases, therefore, use it wisely.
voIpProt.SIP.requestValidation.x.
method
Null or
one of: “source”,
“digest” or
“both”/”all” Null If Null, no validation is done. Otherwise this
sets the type of validation performed for the
request:
source: ensure request is received from an
IP address of a server belonging to the set
of target registration servers;
digest: challenge requests with digest
authentication using the local credentials
for the associated registration (line);
both or all: apply both of the above methods