IP Phone can support only maximum 243 levels. If you request a power conservation level
higher the
maximum conservation level an Avaya IP Phone can support, the phone reverts to
its maximum supported power conservation level. If you select a value of 0 for the PoE
conservation level request, the switch does not request a power conservation level for an
Avaya IP phone.
If you set the PoE conservation level request TLV on a port and you enable energy-saver for
the port, the TLV value is temporarily modified for maximum power savings by the switch. When
you disable energy-saver for the port, the switch automatically restores the power conservation
level request TLV to the previous value.
If you set the PoE conservation level on a port while AES is active on the port and the maximum
PoE Conservation level for the switch is 255, the switch replaces the PoE conservation level
stored for AES restoration with the new value you set for the port.
By default, the transmission of PoE conservation level request TLV is enabled on all PoE
capable switch ports.
You can only configure the PoE conservation level request TLV on switches that support
PoE.
PoE conservation level support TLV
With the PoE conservation level support TLV, an Avaya IP phone transmits information about
current power save level, typical power consumption, maximum power consumption, and
power conservation level of the IP phone, to a switch port.
Call server TLV
With the call server TLV, you can configure the switch to advertise the IP addresses of a
maximum of 8 call servers to connected Avaya IP phones. Avaya IP phones use the IP address
information to connect to a call server.
Avaya IP phones use the call server TLV to report which call server it is connected to back to
the switch.
The call server TLV supports IPv4 addresses only.
By default, the transmission of the call server TLV is enabled for all ports.
File server TLV
With the file server TLV, you can configure the switch to advertise the IP addresses of a
maximum of 4 file servers to connected Avaya IP phones. Avaya IP phones use the IP address
information to connect to a file server.
Avaya IP phones use the call server TLV to report which file server it is connected to back to
the switch.
The file server TLV supports IPv4 addresses only.
By default, the transmission of the file server TLV is enabled for all ports.
Note:
If your
Avaya IP Handset uses SIP, 802.1AB (LLDP) TLVs do not provide all information for
the IP Phone. You must specify a fileserver IP address TLV so the IP phone can download
Connectivity and management information
Configuration — System April 2011 69
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