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Tone during call on T26 and T28P
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computerstlouis Offline
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Posts: 4
Joined: Aug 2013
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Post: #1
Tone during call on T26 and T28P

We have a system setup with about 20 extensions and 16 hard phones, and we only seem to have an issue with 2. There is 1 Yealink T26P and 1 Yealink T28P phone that very randomly decide to make a tone in the users speaker. It sounds to me like the tone to notify you of a new voicemail that chirps every so often, but it does it very fast and constantly.

It will go away if the user hangs up the phone, but it will persist if they put the call on hold and pick it back up. The behavior seems to happen about once per day on a call, but again, the timing seems to be completely random. We thought that it originally was related to voicemails being present on the extension and waiting to be listened to and cleared due to the tone sounding similar, but we have since figured out that there is no correlation to voicemails being present.

We do have several other T26P phones on the network with no issues, but no other T28P phones. All Yealink phones, including these, are running the 3CX version of their firmware.

What should I do to troubleshoot this issue further? Would a wireshark capture help?


08-08-2013 10:13 AM
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Tone during call on T26 and T28P - computerstlouis - 08-08-2013 10:13 AM

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