Polycom RealPresence 2000, Руководство администратора

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Chapter 23-Ultra Secure Mode
Polycom, Inc.
23-39
• The RMX uses the information in the SIP Message header to match the call to a
Precedence Domain and a Precedence Level. Table 23-9 summarizes of the default values.
• SIP Dial in participants, both defined and undefined, do not inherit Precedence or
Domain characteristics from the Participant’s Address Book . (Additional fields, added to
the Participant’s Properties - Advanced and Address Book - Advanced dialog boxes are used
to enter and modify Precedence or Domain characteristics for SIP Dial-out participants.)
• For backward compatibility, calls received with a SIP Message header that contains no
Precedence Domain and the Resource Priority information, are assigned ROUTINE
priority in the first defined Precedence Domain .
• Incoming calls are accepted or rejected depending on the:
—
Value of the REJECT_INCORRECT_PRECEDENCE_DOMAIN_NAME System
Flag.
—
Match or mismatch of the Precedence Domains, set in the RMX and contained in the
incoming SIP Message r-value .
• The r-value is of the following format:
r-value = <
domain name
>
-
<
subdomain
>
.
<
r-priority
>
Table 23-10 shows an example of calls accepted or rejected assuming:
— Domain Name = UC
— Sub Domain = 000000
— r-priority = 2
Table 23-9 Precedence Domain and Resource Priority - DSCP Default Values
Resource
Priority
Precedence Level
DSCP Value
Audio Video
9 FLASH-OVERRIDE-OVERRIDE 33 (0x21) 33 (0x21)
8 FLASH-OVERRIDE 33 (0x21) 33 (0x21)
6 FLASH 35 (0x23) 35 (0x23)
4 IMMEDIATE 37 (0x25) 37 (0x25)
2 PRIORITY 39 (0x27) 39 (0x27)
0 ROUTINE 51 (0x33) 51 (0x33)
NONE No Resource Priority header for backward compatibility