Transparent proxy of multiple clients

I'm currently testing Siproxd as a transparent proxy of multiple clients.
All outbound calls are working great.
Inbound calls intermittently have one way voice.
If you hang up and then call right back it will work fine.

Does Siproxd support transparent proxing of multiple clients or are 
there known issues
with multiple clients?

siproxd-0.8.1-53 x86_64-redhat-linux-gnu
The clients are Mobile Broadband Routers running Astrisk.

More detail can be given if needed.

Thanks
Shannon




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