AudioCodes Mediant 500L MSBR - Page 831

User's Manual 67. Configuration Parameters Reference
Version 6.8 831 Mediant 500L MSBR
Parameter Description
[SIPReroutingMode]

[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:
 This parameter is applicable only to the Gateway
application.
 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
CLI: dns-query
[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) No NAPTR or SRV queries are
performed.
 [1] SRV = If the Proxy/Registrar IP address parameter,
Contact/Record-Route headers, or IP address configured in
the routing tables contain a domain name, an SRV query is
performed. The device uses the first host name received
from the SRV query. The device then performs a DNS A-
record query for the host name to locate an IP address.
 [2] NAPTR = 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.
Notes:
 If the Proxy/Registrar IP address parameter, the domain
name in the Contact/Record-Route headers, or the IP
address configured in the routing tables contain a domain
name with a port definition, the device performs a regular
DNS A-record query.

If a specific Transport Type is configured, a NAPTR query is
not performed.
 To enable NAPTR/SRV queries for Proxy servers only, use
the global parameter ProxyDNSQueryType, or use the
proxy Set table.