Polycom RealPresence 1800 Administration Manual page 448

Appendix - Homologation for Brazil
This section describes how the RealPresence Collaboration Server meets homologation requirements for
import into 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 RealPresence 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
T1
T2
TimerB
TimerC
TimerD
Polycom, Inc.
Value (in milliseconds)
POLYCOM (flag default)
50000
20000
35000
35000
32000
Standard Recommended
500
4000
32000
60000
32000
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