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Polycom®, Inc. 1021
Appendix L - Homologation for Brazil
H.323 & SIP Protocol Flag Options
Using a set of system flags, the user has the ability to select either Polycom proprietary or H.323/SIP
standard protocol settings.
H.323 & SIP Flag Settings
Three flags are enabled on the Collaboration Server, allowing the user to define and select either standard
or proprietary H.323 and SIP protocol settings.
Flag name: SIP_TIMERS_SET_INDEX
Description: SIP Timer type timeout settings according to standard or proprietary protocol.
Flag section: CS_MODULE_PARAMETERS
Possible Values: either 0 or 1.
0 - Polycom standard (flag default setting)
1 - SIP Standard recommendation. For homologation and certification testing, this flag must be set to 1.
For use as a reference, the following table lists the SIP timer types for each flag setting and their
corresponding timeout values in milliseconds.
SIP Timer Types
SIP TIMER Types Value (in milliseconds)
POLYCOM (flag default) Standard Recommended
T1 50000 500
T2 20000 4000
TimerB 35000 32000
TimerC 35000 60000
TimerD 32000 32000
TimerF 35000 32000
TimerH 35000 32000
TimerI 5000 5000