Figure 5-17: Stand-Alone Survivability Screen; Table 5-16: Stand-Alone Survivability Parameters - AudioCodes MP-124 User Manual

Parameter
Enable SAS
[EnableSAS]
SAS Local SIP UDP Port
[SASLocalSIPUDPPort]
SAS Default Gateway IP
[SASDefaultGatewayIP]
SIP User's Manual
http://ArtTel.ru
established, the SAS switches to pre-Normal mode. In this mode, the SAS maintains
all terminations of existing calls while any new SIP call signaling (issued by new
INVITE session) is transacted to/from the IP Centrex server. This requires the SAS to
maintain a database of current active calls so that after releasing all calls established
during Emergency mode, the SAS can continue functioning in Normal mode.
Alternatively, the SAS can be simplified by carelessly handling existing calls.
To configure the Stand-Alone Survivability parameters, take these
4 steps:
Open the 'Supplementary Services' screen (Protocol Management menu >
1.
Advanced Parameters submenu > Stand-Alone Survivability option).

Figure 5-17: Stand-Alone Survivability Screen

Configure the parameters according to the table below.
2.
Click the Submit button to apply your changes.
3.
To save the changes to flash memory, refer to 'Saving Configuration' on page 238.
4.

Table 5-16: Stand-Alone Survivability Parameters

Enables the Stand-Alone Survivability (SAS) application.
Valid options include:
[0] Disable Disabled (default)
[1] Enable = SAS Enable
When enabled, the gateway receives the registration requests from
different SIP entities in the local network and then forwards them to the
defined proxy. If the connection to the proxy fails ('Emergency Mode'), the
gateway serves as a proxy, allowing calls internal to the local network or
outgoing to PSTN.
Local UDP port for sending/receiving SIP messages for the SAS
application. The SIP entities in the local network need to send the
registration requests to this port. When forwarding the requests to the
proxy ('Normal Mode'), this port serves as the source port.
The valid range is 1 to 65,534. The default value is 5,080.
The default gateway used in SAS 'Emergency Mode'. When an incoming
SIP INVITE is received and the destination Address-Of-Record is not
included in the SAS database, the request is immediately sent to this
default gateway.
The address can be configured as a numerical IP address or as a domain
name (up to 49 characters). The default is a null string, which is interpreted
as the local IP address of the gateway.
Description
120
MediaPack Series
Document #: LTRT-65409