Administrative requirements
Issue 1 May 2011 21
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Important:
Important:
Set failover parameters in the settings file and not in SES/SM.
4. Personal Profile Manager (PPM) through either SES or SM
5. Manual administration, unless the system parameter USE_DHCP is set to 1 (Get IP
Address automatically by DHCP), or backup file data obtained through PPM.
For example, if the SIP outbound proxy server address is defined to have the precedence
information so that the value retrieved from DHCP server has a lower precedence than the
value retrieved from the settings file, and the value retrieved from the settings file is higher than
the value retrieved from PPM, then the following determination occurs:
●
If the most recent value the deskphone has is from DHCP and new server address
information is retrieved from the settings file, the deskphone will use the new value from
the settings file.
●
If later on, the deskphone receives a new server address value from PPM, it will not use
this value because PPM’s precedence as a data source for the server address is lower
than the current value (which came from the settings file).
●
If the server to which a specific deskphone points is changed manually using the Craft
ADDR procedure, that value now takes precedence over the previous value.
Note:
Note:
The only exception to this sequence is in the case of VLAN IDs. In the case of
VLAN IDs, LLDP settings of VLAN IDs are the absolute authority. Then the usual
sequence applies. For the L2QVLAN and L2Q system values, LLDP settings of
VLAN IDs are the absolute authority only if the LLDP task receives the VLAN IDs
before DHCP, and the DHCP client of the deskphone is activated. If the LLDP
task receives the VLAN IDs after DHCP negotiation, several criteria must be
successful before the deskphone accepts VLAN IDs from LLDP. For more
information, see
About Link Layer Discovery Protocol (LLDP) on page 119.
Configured controllers precedence and controller priority
The "list of Configured Controllers" is the aggregation of, in (highest to lowest) precedence
order:
1. Controllers entered using a Craft (local administrative) procedure.
2. Controllers delivered by PPM (sipServer in the getHomeServerResponse and proxy
"ServiceName" in the getHomeCapabilitiesResponse). SipServer has the highest
precedence. The proxy(s) are the next highest precedence. When communicating with a
controller delivered by PPM, the phone uses the most secure/reliable transport supported
by that controller. The controllers delivered by PPM are ignored if the
ENABLE_PPM_SOURCED_SIPPROXYSRVR parameter value is 0.
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