[cisco-voip] Silly question...

[Jonathan Charles]

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
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