AudioCodes Mediant 3000 User Manual page 763

SIP User's Manual
Parameter
Web: SAS Survivability Mode
EMS: Survivability Mode
[SASSurvivabilityMode]
Web: Enable ENUM
[SASEnableENUM]
Web: SAS Binding Mode
EMS: Binding Mode
[SASBindingMode]
Web: SAS Emergency Numbers
[SASEmergencyNumbers]
Version 6.4
the top-most Via header and retains the original Contact
header. Thus, the top-most Via header and the Contact
header point to different hosts.

[1] = Enable - the device changes the Contact header so that
it points to the SAS host and therefore, the top-most Via
header and the Contact header point to the same host.
Note: Operating in this mode causes all incoming dialog
requests to traverse the SAS, which may cause load problems.
Determines the Survivability mode used by the SAS application.

[0] Standard = Incoming INVITE and REGISTER requests
are forwarded to the defined Proxy list of SASProxySet in
Normal mode and handled by the SAS application in
Emergency mode (default).

[1] Always Emergency = The SAS application does not use
Keep-Alive messages towards the SASProxySet, instead it
always operates in Emergency mode (as if no Proxy in the
SASProxySet is available).

[2] Ignore Register = Use regular SAS Normal/Emergency
logic (same as option [0]), but when in Normal mode
incoming REGISTER requests are ignored.

[3] Auto-answer REGISTER = When in Normal mode, the
device responds to received REGISTER requests by sending
a SIP 200 OK (instead of relaying the registration requests to
a Proxy), and enters the registrations in its SAS database.

[4] Use Routing Table only in Normal mode = The device
uses the IP-to-IP Routing table to route IP-to-IP SAS calls
only when in SAS Normal mode (and is unavailable when
SAS is in Emergency mode). This allows routing of SAS IP-
to-IP calls to different destinations (and not only to the SAS
Proxy Set).
Enables SAS to perform ENUM (E.164 number to URI mapping)
queries when receiving INVITE messages in SAS emergency
mode.

[0] Disable (default)

[1] Enable
Determines the SAS application database binding mode.

[0] URI = If the incoming AoR in the INVITE requests is using
a 'tel:' URI or 'user=phone' is defined, the binding is
performed according to the user part of the URI only.
Otherwise, the binding is according to the entire URI, i.e.,
User@Host (default).

[1] User Part only = The binding is always performed
according to the User Part only.
Defines emergency numbers for the device's SAS application.
When the device's SAS agent receives a SIP INVITE (from an IP
phone) that includes one of the emergency numbers (in the SIP
user part), it forwards the INVITE to the default gateway
(configured by the parameter SASDefaultGatewayIP), i.e., the
device itself, which sends the call directly to the PSTN. This is
important for routing emergency numbers such as 911 (in North
America) directly to the PSTN. This is applicable to SAS
operating in Normal and Emergency modes.
763
32. Viewing Syslog Messages
Description
November 2011