Polycom 1500 Appendix L

Polycom, Inc. L-1

Appendix L

Using a set of system flags, the user has the ability to select either Polycom proprietary or

H.323/SIP standard protocol 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.

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, Table 1 lists the SIP timer types for each flag setting and their

corresponding timeout values in milliseconds.

Table 1 SIP Timer Types & their Values

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

TimerJ 32000 32000