Based on what we have seen.... # 1. Yes having better connectivity to is a given must, having the ability to change routes via multiple inbound IP Transit peers is a pre-requisite for this.
# 2. Not sure about this, it is more likely to break stuff than reduce exposure to packet drop. # 3. I would say this differently ,( see below). Our Experience are as follows:- ..... Avoid Messing with the MEDIA, as much as possible.... Less number of Codec Conversions the better the quality. Packet Loss is always a big culprit, but identifying the source of it is a bit more challenging than doing the face value troubleshooting. (Source of Media can be different than the perceived ITSP's network .... ) And using devices on the Edge (customer premises, facing the provider), it is very important to have devices that will respect the DSCP/TOS tags and follow them..... Lots of device do a good job of it, and many other don't. (There is no correlation on less expensive device is not as good as a more expensive device). The key to good quality Audio is.... Avoid Congested Network Paths. Avoid Media Conversion / Codec Conversions ... Avoid packet drops at Customer Edge. It is rather simple, but gets complicated in tracking down the source of the problem... Which becomes a whole different topic ! Regards. Faisal Imtiaz Snappy Internet & Telecom ----- Original Message ----- > From: "Mark R Lindsey" <[email protected]> > To: [email protected] > Sent: Monday, June 9, 2014 2:50:57 PM > Subject: [VoiceOps] High Quality, Reliable Voice via the Internet / SIPNOC > > At SIPNOC this week, we're having a "Birds of a Feather" session on > delivering quality voice services across the public Internet. > > A few techniques to make voice across the Internet better: > > 1. For packets from the ITSP to the customer: override the default BGP > routing to choose an alternate route > > 2. Increase the ptime from 20 ms to 30-40 ms to reduce packet-drop exposure > > 3. EdgeWater brings us this one: actively manage TCP streams from Internet to > CPE to provide better quality for Voice. > > So what OTHER techniques are there? Which techniques don't work? > > Yeah, it's the Internet. It's going to have failures. You're going to have > bad days. But surely there are ways to improve the odds. > > >>> [email protected] +1-229-316-0013 http://ecg.co/lindsey > > > _______________________________________________ > VoiceOps mailing list > [email protected] > https://puck.nether.net/mailman/listinfo/voiceops > > _______________________________________________ VoiceOps mailing list [email protected] https://puck.nether.net/mailman/listinfo/voiceops
