WS-C4507R+E - Duplex mismatch with MAC 1 (half duplex)

[Pear11]

: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet2/25 (not half duplex), with MAC 1 (half duplex)

: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet2/25 (not half duplex), with MAC t 1 (half duplex).
: %CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet2/25 (not half duplex), with MAC address Port 1 (half duplex).

Getting above log message, Cisco IP phone connected to switch WS-C4507R+E. 

Please advice on resolve the issue.

Thanks,

[Jaderson Pessoa]

Hello,

Maybe it is a cable damaged, try swap it.