TH2PATCH Version 1.0 replaces the DSP firmware in the TH2 to correct a recently discovered error. The symptom is that after long conversations (on the order of an hour or more) the TH2 fails to cancel the line echo. This causes the local transmit signal to be clearly heard in the local sound system, and can cause feedback in some cases.
Download this file to a temporary folder, run it to extract the compressed files then refer to readme.txt for further instructions.
File last updated on Jan 27, 1997
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