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Version 6.2 93 December 2010
SIP Release Notes 1. What's New in Release 6.2
1.11.2 SBC New Parameters
The table below describes the new SBC application parameters for Release 6.2.
Table 1-6: New SBC Parameters for Release 6.2
Parameter Description
SBC No Answer Timeout
[SBCAlertTimeout]
Defines the timeout (in seconds) to SBC outgoing (outbound
IP routing) SIP INVITE messages. If the called IP party does
not answer the call within this user-defined interval, the
device disconnects the session. The device starts the
timeout count upon receipt of a SIP 180 Ringing response
from the called party. If no other SIP response (for example,
200 OK) is received thereafter within this timeout, the call is
released.
The valid range is 0 to 3600 seconds. the default is 600.
SBC GRUU Mode
[SBCGruuMode]
Determines the Globally Routable User Agent (UA) URI
(GRUU) support (according to RFC 5627).
[0] None = No GRUU is supplied to users.
[1] As Proxy = The device provides same GRUU types as
the proxy provided the device’s GRUU clients. (default)
[2] Temporary only = Supply only temporary GRUU to
users. (Currently not supported.)
[3] Public only = The device provides only public GRUU to
users.
[4] Both = The device provides temporary and public
GRUU to users. (Currently not supported.)
SBC Max Forwards Limit
[SBCMaxForwardsLimit]
Defines the value of the Max-Forwards SIP header.
The valid value range is 1-70. The default is 10.
This parameter affects the Max-Forwards header in the
received message, as follows:
If the received header’s original value is 0, the message is
not passed on and is rejected.
If the received header’s original value is less than the
user-defined parameter, the header’s value is
decremented before being sent on.
If the received header’s original value is greater than the
user-defined parameter, the header’s value is replaced by
the user-defined parameter’s value
Minimum Session-Expires
[SBCMinSE]
Defines the minimum amount of time (in seconds) between
session refresh requests in a dialog before the session is
considered timed out. This value is conveyed in the SIP Min-
SE header.
The valid range is 0 (default) to 1,000,000 (where 0 means
that the device does not limit Session-Expires).