Yealink SIP T46G Administrator's Manual page 35

Administrator's Guide for SIP-T46G IP Phone
transmission parameters (e.g., speed and duplex mode) to transmit voice or data over
Ethernet. In this process, the connected devices first share transmission capabilities and
then choose the highest performance transmission mode they both support. You can
configure the Internet port and PC port on the IP phones to auto-negotiate during the
transmission.
Half-duplex
Half-duplex transmission means that voice or data can be transmitted in both directions,
but only one direction at a time. For example, one device can send data on the line, but
not receive data simultaneously. You can configure the half-duplex transmission on both
Internet port and PC port for the IP phones to transmit in 10Mbps or 100Mbps.
Full-duplex
Full-duplex transmission means that voice or data can be transmitted in both directions
at the same time. For example, one device can send data on the line while receiving
data. You can configure the full-duplex transmission on both Internet port and PC port
for the IP phones to transmit in 10Mbps, 100Mbps or 1000Mbps.
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