Iain, If it were to be offered as a non-hidden service, what about the UDP portion of the VoIP services, or do we just force everything to be TCP? Thanks, Conrad > On Oct 22, 2018, at 11:13 AM, Iain Learmonth <irl@xxxxxxxxxxxxxx> wrote: > > Signed PGP part > Hi Conrad, > > On 20/10/18 06:07, Conrad Rockenhaus wrote: >> 4) Results of a test were conducted and one second round trip latency was noticed from PSTN to a soft phone connected via Tor (via OpenVPN). Hopefully performance improvement will be noticed with OnionCat. > > Tor Metrics has some data on average latencies for client to Onion > service. This is your absolute minimum latency, with the only way to > reduce this being to have latency-aware path selection or to reduce > latencies on the Internet (e.g. by swapping fibre for copper or copper > for microwave). > > https://metrics.torproject.org/onionperf-latencies.html > > You get benefit from using an Onion Service over using an exit in that > you're using less constrained resources (exits are scarce) but you also > add extra hops to your circuit. For now, these extra hops do increase > latency. Configuring your onion service to not be location hidden would > improve this. > > It would be interesting to see what kind of overheads are added by > OnionCat, but I see that this is a project that has an end in sight > unless someone comes up with a way to make it work with v3 Onion > Services. IPv6 addresses are not long enough to encode keys into to make > them self-authenticating. Either we need IPv7 or perhaps some > Onion-native network layer or something else. > > If you have the endpoints that support it, Codec2 might give you some > benefits. This was originally designed for amateur-radio low bandwidth > digital voice but is also supported by Asterisk. > > It might also be that half-duplex communication (even if implemented > with humans saying "over") could bring benefits as this would allow you > to increase the buffer sizes without having people talking over each other. > > Thanks, > Iain. > > >
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