Polycom MGC Administrator, Руководство администратора

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Chapter 3 - Defining Network Services
3-76
To decide which registration mode is the most appropriate, the following
table lists the trade-off of each type relative to parameters such as
processing load, speed, and more.
Refresh SIP
Registrations Every
n Seconds Enter the frequency in which the system informs the
SIP proxy that it is active by re-sending the details of
all conference types to the server. If the various
conferences and Entry Queues do not register within
the defined time interval, the SIP server will not refer
calls to this conference/Entry Queue until it re-
registers. If timeout is set to 0, re-registration is
disabled.
The default value is 3600 seconds (60 minutes).
Table 3-21: SIP Dialog Box Options (Continued)
Field Description
Table 3-22: Registration Modes—Pros and Cons
Factor/Mode Redirect Polling Forking
Connection speed:
How long it will take for an
incoming call to establish
its connection to the
conference 2 3
The slowest
connection.
1
The fastest
connection.
IP card and MCU load:
The amount of processing
required by the MCU to
complete the connection
according to selected
method 1
Lower load.
The request is
sent only to
one IP card.
2
The request
is sent to
one card
after the
other.
3
Highest load.
The request
is sent to all
cards simul-
taneously.
Network load 1
Least load.
2 3
Highest
Load.
Proxy dependence:
How common is this mode
to proxies 1
Supported by
most proxies.
3
Not
supported by
all proxies.
3
Not
supported by
all proxies.