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comparison doc/Firmware_Status @ 1033:5ab737ac3ad7

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TCH special feature documentation update
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 01 Jun 2016 02:06:44 +0000
parents e1d670ec6012
children
comparison
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1032:6e7dd5e52650 1033:5ab737ac3ad7
72 downlink audio is routed to the phone's earpiece speaker and the phone's 72 downlink audio is routed to the phone's earpiece speaker and the phone's
73 microphone serves as the source for the uplink audio, i.e., even though the 73 microphone serves as the source for the uplink audio, i.e., even though the
74 LCD and keypad are dead with our firmware, the earpiece and mic continue to 74 LCD and keypad are dead with our firmware, the earpiece and mic continue to
75 function as in a conventional phone. 75 function as in a conventional phone.
76 76
77 There is also a highly experimental and completely untested alternative mode 77 There is also a highly experimental and minimally tested alternative mode
78 of operation in which the traffic channel carrying FR codec bits (260 bits 78 of operation in which the traffic channel carrying FR codec bits (260 bits
79 every 20 ms) is rerouted away from the internal vocoder to the external host, 79 every 20 ms) is rerouted away from the internal vocoder to the external host,
80 such that you can receive the downlink voice bits digitally instead of 80 such that you can receive the downlink voice bits digitally instead of
81 listening to them in the earpiece speaker, and you can substitute your own 81 listening to them in the earpiece speaker, and you can substitute your own
82 uplink bits instead of the microphone-fed internal vocoder output. See the 82 uplink bits instead of the microphone-fed internal vocoder output. See the