Ethernet Board with Gsm/Gprs Module
Posted on December 4th, 2008 by Jerry
The audio is sampled at 8KHz and sent via UDP using the IAX2 protocol to an Linux Asterisk PBX . Software highlights: - 8 KHz AF sampling in/out - AF aLaw compression coding/decoding - AF 2 Kb FIFO buffer - 3 interrupts (125us interrupt, …
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Filed under: VoIP