Yealink SIP-T38G

Administrator’s Guide for SIP-T3xG IP Phones
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power priority, and how much power the device needs.
 Inventory Management — provides a means to effectively manage device and the
attributes of the device such as model number, serial number and software
revision.
TLVs supported by the IP phone are summarized in the following table:
TLV Type
TLV Name
Description
Mandatory TLVs
Chassis ID
The network address of the IP phone.
Port ID
The MAC address of the IP phone.
Time To Live
Seconds until data unit expires.
The default value is 120s.
End of LLDPDU
Marks end of LLDPDU.
Optional TLVs
System Name
Name assigned to the IP phone.
The default value is ―yealink‖.
System Description
Description of the IP phone.
The default value is ―yealink‖.
System Capabilities
The supported and enabled capabilities
of phone.
The supported capabilities are Bridge,
Telephone and Router.
The enabled capabilities are Bridge and
Telephone by default.
Port Description
Description of port that sent data unit.
The default value is ―WAN PORT‖.
IEEE Std 802.3
Organizationally
Specific TLV
MAC/PHY
Configuration/Status
Duplex and bit rate settings of the IP
phone.
The Auto Negotiation is supported and
enabled by default.
The advertised capabilities of PMD.
Auto-Negotiation are: 100BASE-TX (full
duplex mode), 100BASE-TX (half duplex
mode), 10BASE-T (full duplex mode),
10BASE-T (half duplex mode).
TIA
Organizationally
Specific TLVs
Media Capabilities
The MED device type of the IP phone and
the supported LLDP-MED TLV type can be
encapsulated in LLDPDU.
The supported LLDP-MED TLV types are: