i have noise in cisco ip phone 7985

steadfastmsksteadfastmsk Registered Users Posts: 1 ■□□□□□□□□□
in CCNA Collaboration
hello everybody
i am sorry about my language :)
i have noise in cisco ip phone when manager connecte to secretary only
and when i restart ip phone the problem solved but after one week return same problem
what is the solution

thank you
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