[cisco-voip] Silly question...

[Jason Aarons (US)]

No cRTP, codec was g711. Bandwidth wasn't concern of theirs, they leased a piece of the satellite, had their own mini satellite operations room -jason

-----Original Message-----
From: James Buchanan [mailto:jbuchanan at ctiusa.com] 
Sent: Friday, February 29, 2008 4:34 PM
To: Jason Aarons (US); keith.klevenski at rig.net; 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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