Version 5.2 73 September 2007
SIP User's Manual 5. Web-based Management
2. Configure the parameters according to the table below.
3. Click the Submit button to save your changes.
4. To save the changes to flash memory, refer to 'Saving Configuration' on page 256.
Table 5-8: General Parameters (Protocol Definition)
Parameter Description
PRACK Mode
[PRACKMode]
PRACK mechanism mode for 1xx reliable responses.
Valid options include:
 [0] Disable
 [1] Supported (default)
 [2] Required
Notes:
 The Supported and Required headers contain the '100rel'
parameter.
 The gateway sends PRACK message if 180/183 response
is received with '100rel' in the Supported or the Required
headers.