Mitel 6800 Series, Руководство администратора

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Global SIP Settings
4-66
backup proxy, backup registrar, and
backup outbound proxy configured, • All invite, register, and subscribe requests attempt to use
the primary proxy/registrar first.
• If any connection fails, the phone registers the backup
AOR on the backup registrar. It moves all subscriptions to
the backup proxy.
• When the primary is functional again, registration and
subscriptions are moved back to the primary
proxy/registrar.
backup outbound proxy configured
only, • All invite, register and subscribe requests are sent
through the primary outbound proxy first.
• If the primary proxy fails, the phone performs registration
and subscriptions through the backup outbound proxy.
• When the primary proxy comes back online, the
registrations and subscriptions are performed again
through the primary outbound proxy.
SIP OUTBOUND ENABLED AND
backup proxy and backup registrar
configured, • Establishes flow to the primary proxy and registrar.
• If the flow to the primary registrar fails, the phone:
• establishes flow to the backup registrar.
• registers to the backup registrar.
• attempts to reestablish flow to the primary registrar in
the background.
• When the primary registrar comes back up, the phone
unregisters from the backup and registers with the
primary.
•If the flow to the primary proxy fails, the phone:
•
establishes flow to the backup proxy.
• registers the new AOR with the active registrar.
• moves subscriptions to the backup proxy.
• attempts to reestablish the flow to the primary proxy in
the background.
• When the flow to the primary proxy is reestablished, the
phone:
• registers the primary AOR to the active registrar.
• moves subscriptions to the primary proxy.
• unregisters/unsubscribes from the backup
proxy/registrar.