Parameter Reference
75
X_ProxyServerRedundancy Enables proxy redundancy feature on the device. To
use this feature, device registration must be enabled
and the SIP Registration Server or Outbound Proxy
Server must be configured as a domain name.
No
X_SecondaryRegistration Enables device to register with a secondary server in
addition to the primary server.
X_ProxyServerRedundancy must be enabled for
this parameter to take effect.
No
X_CheckPrimaryFallbackInter
val
Interval in seconds at which the device checks the
primary fallback list of candidate servers.
60
X_CheckSecondaryFallbackIn
terval
Interval in seconds at which the device checks the
secondary fallback list of candidate servers.
60
X_ProxyFailoverResponseCo
des
A list of failure response codes specified in the form
of a digit map string to trigger proxy failover. If only
one-digit map is specified, it applies to REGISTER
and INVITE requests. If two-digit maps are provided
(separated by a comma), the first one applies to
REGISTER and the second to INVITE.
([5-9]xx)
X_InviteFailoverWaitRegTime
r
Maximum time (in milliseconds) to wait for
successful register failover to retry INVITE after
failure.
32000
X_ProxyRequire If this parameter isn’t blank, the device includes a
Proxy-Require header stating the value of this
parameter in all SIP requests sent to the ITSP.
X_MaxForward Value for the Max-Forward header in all SIP requests
sent by the device.
70
X_AcceptLanguage If this parameter isn’t blank, the device includes an
Accept-Language header stating the value of this
parameter in all SIP requests sent to the ITSP.
X_DnsSrv Enable DNS SRV lookup for the proxy server or the
outbound proxy server.
Yes
X_DnsSrvAutoPrefix Enables letting the device automatically prepend a
standard prefix to the domain name when querying
DNS Server to resolve the ProxyServer or
OutboundProxy name as a SRV record. The
standard prefix is _sip._udp. for SIP over UDP,
_sip._tcp. for SIP over TCP, and _sip._tls.
for SIP over TLS.
No
X_Support100rel Enables support for RFC3262 (reliable provisional
SIP responses). If enabled, the device announces
this support in a SIP Supported header, and requires
a caller to use this option if the caller also supports
this feature.
No
ITSP Profile X – SIP Web Page (X = A, B, C, D, E, F, G, H) Settings Parameter Guide
Parameter Description Default Setting
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