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Cannot hear caller sporadically - several T28
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dcfindlay Offline
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Cannot hear caller sporadically - several T28
Two different T28's at different sites have had this problem in the last year. Both phones were in service for over a year before the problem started. The user started being unable to hear callers, frequently but not always. And only on the handset. The call works fine when put on speaker.

I've replaced the handset and handset cord. No change. Only replacing the phone cured the problem.

The firmware was not changed since installation. Neither was the network. All other T28's on those two networks are working fine. They were in regular offices with heat and A/C.

Has this been see before? Corrosion in the jack perhaps? Or a failing amplifier?
07-21-2015 04:34 AM
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Cannot hear caller sporadically - several T28 - dcfindlay - 07-21-2015 04:34 AM

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