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When do the patents expire?When do the patents expire?Posted Feb 25, 2009 16:54 UTC (Wed) by Cyberax (subscriber, #52523)In reply to: When do the patents expire? by jonth Parent article: The trouble with OpenBTS
A lot of operators still use 9600 bit rate for voice. It's not that bad.
Actually, 1991 standard should suffice, since you probably won't need GPRS for your local base station.
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When do the patents expire? Posted Feb 25, 2009 21:21 UTC (Wed) by jonth (subscriber, #4008) [Link]
Actually, it's 13kb/s, and it's not the rate, it's the codec. A new, enhanced FR codec was introduced in around 1996. Trust me, the difference is extraordinary.
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