[cisco-voip] Silly question...

[Calvin, Martin]

Again, it comes down to what the user will tolerate.  If you place a
PSTN call to Asia, you get delay and have to adjust how you speak to
allow for latency.  Most people compensate pretty quickly.  Worse is
jitter and discards which people will tolerate less than delay.  A lossy
low latency connection will drive people more insane than a clean one
with longer delays.

> -----Original Message-----
> From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-
> bounces at puck.nether.net] On Behalf Of Paul Choi
> Sent: Friday, February 29, 2008 3:04 PM
> To: Jonathan Charles; Keith Klevenski
> Cc: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] Silly question...
> 
> Actually, I meant 120ms one way making it 240ms
> roundtrip. . .  that's the maximum RTT ping response
> you'd be looking for. 300ms might be acceptable for
> some, but for most, I doubt it.
> 
> 
> --- Jonathan Charles <jonvoip at gmail.com> wrote:
> 
> > OK, here's the thing.
> >
> > This morning, if you had asked me this question, I
> > would have bet
> > serious amounts of cash that the MAXIMUM ROUND TRIP
> > DELAY was 150ms.
> >
> > Now, I am seeing that it is ONE WAY, with a maximum
> > of 300ms round
> > trip... that is insane.
> >
> >
> >
> >
> > Jonathan
> >
> > On Fri, Feb 29, 2008 at 4:05 PM, Keith Klevenski
> > <keith.klevenski at rig.net> wrote:
> > > We use g729 everywhere and cRTP in some instances
> > as it causes some problems sometimes.  Just got off
> > the phone configuring cRTP on a rig router in hopes
> > to help that saturated 192k link...
> > >
> > >
> > >  Keith Klevenski
> > >  Senior IP Telephony Engineer
> > >  RigNet Inc.
> > >  1880 S. Dairy Ashford
> > >  Suite 300
> > >  Houston, TX 77077
> > >  Office:   +1 281.674.0702
> > >  Mobile:  +1 713.677.3925
> > >  http://www.rig.net
> > >
> > >  "Always Connected"
> > >
> > >
> > >  -----Original Message-----
> > >
> > > From: James Buchanan [mailto:jbuchanan at ctiusa.com]
> > >
> > >
> > > Sent: Friday, February 29, 2008 3:34 PM
> > >  To: jason.aarons at us.didata.com; Keith Klevenski;
> > jonvoip at gmail.com; cisco-voip at puck.nether.net
> > >  Subject: Re: [cisco-voip] Silly question...
> > >
> > >  Were they using cRTP and G729?
> > >
> > >  ----- Original Message -----
> > >  From: cisco-voip-bounces at puck.nether.net
> > <cisco-voip-bounces at puck.nether.net>
> > >  To: Keith Klevenski <keith.klevenski at rig.net>;
> > Jonathan Charles <jonvoip at gmail.com>; cisco-voip
> > <cisco-voip at puck.nether.net>
> > >  Sent: Fri Feb 29 16:29:21 2008
> > >  Subject: Re: [cisco-voip] Silly question...
> > >
> > >  We worked with a US company that put 7960s on a
> > oil platform in the Gulf of Mexico via satellite.
> > Ping was about 500-600ms, but they said the phone
> > quality was good, and cost less than satellite
> > phones.
> > >
> > >  -----Original Message-----
> > >  From: cisco-voip-bounces at puck.nether.net
> > [mailto:cisco-voip-bounces at puck.nether.net] On
> > Behalf Of Keith Klevenski
> > >  Sent: Friday, February 29, 2008 4:25 PM
> > >  To: Jonathan Charles; cisco-voip
> > >  Subject: Re: [cisco-voip] Silly question...
> > >
> > >  I believe Cisco recommends 150ms maximum one way
> > delay which of course is 300ms round trip.  We do
> > voip over satellite links of anywhere from 600-800ms
> > with excellent quality.  There is usually a second
> > or so of delay that you have to get used to, but
> > sometimes it is hardly noticeable and the quality is
> > excellent.  Considering there is a 40K mile hop from
> > the teleport to the satellite and back down to the
> > dish it is impressive how well it actually works.
> > >
> > >  Keith Klevenski
> > >  Senior IP Telephony Engineer
> > >  RigNet Inc.
> > >  1880 S. Dairy Ashford
> > >  Suite 300
> > >  Houston, TX 77077
> > >  Office:   +1 281.674.0702
> > >  Mobile:  +1 713.677.3925
> > >  http://www.rig.net
> > >
> > >  "Always Connected"
> > >
> > >
> > >  -----Original Message-----
> > >  From: cisco-voip-bounces at puck.nether.net
> > [mailto:cisco-voip-bounces at puck.nether.net] On
> > Behalf Of Jonathan Charles
> > >  Sent: Friday, February 29, 2008 2:51 PM
> > >  To: cisco-voip
> > >  Subject: [cisco-voip] Silly question...
> > >
> > >  OK, really quick, what is the maximum recommended
> > ROUND TRIP delay for
> > >  decent voice quality?
> > >
> > >
> > >
> > >
> > >
> > >  Jonathan
> > >  _______________________________________________
> > >  cisco-voip mailing list
> > >  cisco-voip at puck.nether.net
> > >
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> 
> 
> 
>
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