nanog mailing list archives
Re: RTT from NY to New Delhi?
From: "Stephen Sprunk" <stephen () sprunk org>
Date: Wed, 16 May 2007 10:03:42 -0500
Thus spake "Tim Franklin" <tim () pelican org>
Going east from NY, you'd add 70 or 80ms to that - and a quick look suggests routes going west instead. (Test from home to .IN NS goes London -> NY -> West Coast -> Singtel -> India, for ~370ms) It's starting to head a bit towards walkie-talkie mode for VoIP, but not too bad other than that...
You'd be surprised what people are willing to accept when the alternatives are worse. I had a customer install VSAT in India just so they could use IP phones -- and their only gateway was in the US. Apparently the audio quality and reliability of the PTT was so bad that they were willing to _stand in line_ to use the two IP phones there to make calls, even with the walkie-talkie effect in full force. It was cheaper too, despite the outrageous cost of VSAT bandwidth.
US telcos and engineers tend to overestimate the importance of audio quality and reliability on VoIP; we have an entire generation of people now who have been trained by wireless carriers to _expect_ to pay through the nose for bad quality. VoIP across the Internet, even with no QoS at all, looks great in comparison because it's cheaper and sounds better.
S Stephen Sprunk "Those people who think they know everything CCIE #3723 are a great annoyance to those of us who do."K5SSS --Isaac Asimov
Current thread:
- Re: RTT from NY to New Delhi?, (continued)
- Re: RTT from NY to New Delhi? Justin M. Streiner (May 16)
- Re: RTT from NY to New Delhi? Mike Hammett (May 16)
- Re: RTT from NY to New Delhi? Joe Maimon (May 16)
- Re: RTT from NY to New Delhi? Eric Gauthier (May 16)
- Re: RTT from NY to New Delhi? Chris L. Morrow (May 16)
- Re: RTT from NY to New Delhi? Justin M. Streiner (May 16)
- Re: RTT from NY to New Delhi? Robert Baxter (May 16)
- Re: RTT from NY to New Delhi? Tim Franklin (May 16)
- Re: RTT from NY to New Delhi? Marshall Eubanks (May 16)
- Re: RTT from NY to New Delhi? Gian Constantine (May 16)
- Re: RTT from NY to New Delhi? Stephen Sprunk (May 16)
- Re: RTT from NY to New Delhi? Marshall Eubanks (May 16)
- Re: RTT from NY to New Delhi? John Payne (May 16)
- Re: RTT from NY to New Delhi? Steven M. Bellovin (May 16)
- Re: RTT from NY to New Delhi? Joe Maimon (May 16)
- Re: RTT from NY to New Delhi? Justin M. Streiner (May 16)