Polycom SIP 3.1 reg.x.auth.optimizedInFailover takes, If reg.x.auth.optimizedInFailover set to

Administrator’s Guide SoundPoint IP / SoundStation IP

	Permitted
Attribute	Values	Default	Interpretation
voIpProt.SIP.authOptimizedInFailover	0,1	0	If set to 1, when failover occurs, the first new
			SIP request is sent to the server that sent the
			proxy authentication request.
			If set to 0, when failover occurs, the first new
			SIP request is sent to the server with the
			highest priority in the server list.
			If reg.x.auth.optimizedInFailover set to
			Null, this attribute is checked.
			If
			voIpProt.SIP.authOptimizedInFailover
			is Null, then this feature is disabled.
			If both attributes are set, the value of
			reg.x.auth.optimizedInFailover takes
			precedence.
voIpProt.SIP.csta	0, 1	0	If set to 1, uaCSTA is enabled.
voIpProt.SIP.strictLineSeize	0, 1	Null	If set to 1, forces the phone to wait for 200
			OK response when receiving a TRYING
			notify.
			If set to 0 or Null, this is old behavior.
voIpProt.SIP.strictUserValidation	0, 1	Null	If set to 1, forces the phone to match user
			portion of signaling exactly.
			If set to 0 or Null, phone will use first
			registration if the user part does not match
			any registration.
voIpProt.SIP.lineSeize.retries	3 to 10	10	Controls the number of times the phone will
			retry a notify when attempting to seize a line
			(BLA).
voIpProt.SIP.header.diversion.enable	0, 1	0	If set to 1, the diversion header is displayed if
			received.
			If set to 0 or Null, the diversion header is not
			displayed.

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