Robert,
Mathew seems to be working from the repeater with a entitlement key to allow audio to be sent via what I believe is SIP to and from Asterisk.
You will have to ask him about that.

We are grabbing IPSC data from the bridge and routing it to what the bridge THINKS is a Mototrbo repeater. From there, the AMBE packets need to be formatted into a frame that the DV3000 can understand and decode into PCM. That PCM is passed to The USRP channel driver and into asterisk. AllStar sees it as a node just like any USB or PCI Radio card etc. DMR-MARC --> Bridge --> Formatter --> DV3000 --> USRP / Asterisk. And back the other way of course. This is all software except for the DV3000.

Steve N4IRS

On 11/11/2015 10:01 AM, Robert Newberry wrote:

I'm trying my best to understand this. It's my understanding that maybe using a mototrbo repeater and feeding the digital data steam into a DV3000 we should get a ulaw or pcm or something in analog out the other side right? Is my simplistic understanding of this right?

I have a xpr8300 sitting on a shelf I can experiment with? I'm guessing there is a big gotcha here I'm missing like my simple understanding is not so easily done.

N1XBM
Apparare Scientor
Paratus Communicare
Allstar Node # 27086, 41540, 41812, 42086
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