request is received).
 [0] Standard = (Default) INVITE messages that are
generated as a result of Transfer or Redirect are sent
directly to the URI, according to the Refer-To header in the
REFER message, or Contact header in the 3xx response.
 [1] Proxy = Sends a new INVITE to the Proxy.
Note: This option is applicable only if a Proxy server is used
and the parameter AlwaysSendtoProxy is set to 0.
 [2] Routing Table = Uses the Routing table to locate the
destination and then sends a new INVITE to this
destination.
Notes:
 When this parameter is set to [1] and the INVITE sent to the
Proxy fails, the device re-routes the call according to the
Standard mode [0].
 When this parameter is set to [2] and the INVITE fails, the
device re-routes the call according to the Standard mode
[0]. If DNS resolution fails, the device attempts to route the
call to the Proxy. If routing to the Proxy also fails, the
Redirect/Transfer request is rejected.
 When this parameter is set to [2], the XferPrefix parameter
can be used to define different routing rules for redirect
calls.
 This parameter is disregarded if the parameter
AlwaysSendToProxy is set to 1.
Web/EMS: DNS Query Type
[DNSQueryType]
Enables the use of DNS Naming Authority Pointer (NAPTR)
and Service Record (SRV) queries to resolve Proxy and
Registrar servers and to resolve all domain names that appear
in the SIP Contact and Record-Route headers.
 [0] A-Record (default)
 [1] SRV
 [2] NAPTR
If set to A-Record [0], no NAPTR or SRV queries are
performed.
If set to SRV [1] and the Proxy/Registrar IP address
parameter, Contact/Record-Route headers, or IP address
defined in the Routing tables contain a domain name, an SRV
query is performed. The device uses the first host name
A-record query for the host name to locate an IP address.
If set to NAPTR [2], an NAPTR query is performed. If it is
successful, an SRV query is sent according to the information
received in the NAPTR response. If the NAPTR query fails, an
SRV query is performed according to the configured transport
type.
If the Proxy/Registrar IP address parameter, the domain name
in the Contact/Record-Route headers, or the IP address
defined in the Routing tables contain a domain name with port
definition, the device performs a regular DNS A-record query.
If a specific Transport Type is defined, a NAPTR query is not
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