7940 Phones plays back engaged tones during calls

Unanswered Question
Aug 13th, 2010
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Hi,

We recently upgrade Call Manager from 4.1 to 7.1.3 since then user have intermittently report that they can hear an engaged tone while been on a an active call.

I have upgraded the phones to the latest firmware which is P00308010200, but this hasn’t helped.

Any ideas anyone?

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