I couldn’t think of a much better title. Here’s exactly how it goes: [onno] wanted to convert a DECT phone for VOIP use. very first he tried using transformers for the audio, however was unhappy with the noise as well as echo. He describes exactly how to do a direct tap like [Christoffer]’s Skype phone, however includes all of the necessary steps to keep from frying your sound card. The primary piece of this job is his hacked “chan_oss” driver for Asterisk. using the driver, Asterisk is able to ring the DECT phone. It likewise detects whether the phone is off-hook by comparing the sound input to the known line noise level. The phone can dial using DTMF just like any type of conventional phone.
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