Can anyone give me advice on how to increase the volume on the ear of a BT330? It has obviously been converted to PSTN and has also been changed from Pulse to Tone dial. I am sure it is not the conversion but any help or even better a manual would be great.
BT330 earpiece volume increase
- Thread starter punchy
- Start date
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What is a BT 330 ? Can you post a picture?
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