Hm. So you're spreading the same FUD, but with different words?
1) Given that you're (probably) using VoATM, you're comparing apples to Oranges. My neighbor has cable phone. It was out for a little over a day two months ago -- our internet connection (and phone) worked fine.
2) Right. You're a phone company, not a VoIP provider. You route your calls over the public switched telephone network, and are at the mercy of all the thousands of switches that live between you and the destination. Also see #1.
3) I've needed to call 911 twice now on my vonage service, once about 2 years ago and then again about a month ago. Both times my call went through to my local 911 service immediately. No transfers, no national call center, no delays. Dial, *ring*, *click*, "Please state the nature of your emergency." 311 service (non-emergency police/fire/city service) has been the same way.
4) In over two years, I've *never* needed to call Vonage, so I can't comment on that.
I know you were trying to be cute, but RIAA is compensated for music played at a funeral if the music is supplied by the funeral home. Technically, any performance of a copyrighted work entitles the copyright holder to whatever royalties they see fit to negotiate. This fee is usually hidden from you (be that by advertising, payola, subscription fee or the like), but it still happens.
You're mistaking carrier-grade voice service with a data SLA. Carrier-grade services require that a telco provide dialtone, routing, completion, and ring within certain time limits a certain percentage of the time. In all my years of dealing with telcos, I've only missed a dialtone twice. I've gotten failed routing far more often, but still well within 99.999% of the time. My data circuits, on the other hand, have failed often.
Printers (the hardware) use the CMYK color-space as well. My photo printer uses CMYK plus red, blue, and grey, although the color space it is printing in is still just CMYK.
Nonsense, everyone does not backup on USB disks. Tapes have the advantage of offsite storage in the event of a disaster. You certainly are not going to take a USB drive to the bank vault weekly or monthly.
I do. Once a month, my backup drive comes back from the bank, gets updated, and goes back to the bank. But I'm pretty sure I'm the exception to the general rule.
It's more accurate to say that the wheel is free-spinning. It isn't contributing to drive power, but it's not drawing any current, either. It can still steer, so it's not off at some odd angle.
Additionally, there's only been a couple days worth of data -- noone really knows why the motor stalled.
There are several organizations that are required by law to keep records of data for several years. An example:
When I was in the telecom field, we were required to keep a log of every call made for 6 years. Now imagine you are a tiny mom and pop organization -- let's just call it Sam and Bob's Communications. You buy another small mom-and-pop sop, Art, Trent, & Trevor. You've now got a combined customer base of, say 500 million people. Half of them also have a cell phone, and 20% have two phone lines. That's a lot of data.
And, of course, there's the ever-present need for Homland Security to log every breath that every person in america takes.
This was tried back in the 90s with text-based MUDs. It doesn't work really well -- nevermind the client understanding it, you've got to keep the user base synced on the different servers, You have to deal with different "zones" having different performance, etc. IT just sucks pretty badly all around.
Look at inkjets again. I've got an Epson R800. Photo life is estimated 80 years, and I can't see any dots in the image. We routinely print 8x10s and nobody has ever guessed that they weren't standard prints from a photo processor. I've never had ink smear, even when it's gotten water on it (I was very suprised by this). Dye sub printers do give a more "smooth" image than an ink jet, but at 1.5 pL per drop, you'de have to be using a jeweler's loupe to tell the difference.
Dye sub printers use their own cartridges. The ink's gotta come from someplace, you know. The cheaper dye subs lock you into a "cartridge" system, where you're paying for paper and ink, with no choice. If I'm going to do that, I might as well get a printer that can print standard pages as well (my R800 will spit out something like 15ppm of 8x10 standard text. What's you dye sub do?)
Now, my R800 isn't your standard consumer printer -- it was $380 when I bought it, and a full ink refill runs me $120 to print around 300 4x6 photos. But my photos come out far better than your standard $50-$100 printer.
What I'd REALLY like to see is a consumer direct photo printer. There's no reason we shouldn't be printing directly to photo paper in today's world -- that's what all the 1-hour "wal-mart" photo shops are doing.
Turn off your printer. I routinely go for weeks between prints, and I've only had the nozzles clog once -- I had neglected to turn the printer off. When you turn it off, the printer "parks" the heads in an air-tight "container." Since the ink doesn't dry out, no clogs.
Actually, I did have the nozzles clog one other time -- I had used cartridges that weren't Epson brand, a mistake I've never made again.
He was talking about diesel fuel. Diesel requires significantly less refining to produce. Not only do you get more diesel per barrel of raw crude oil, it takes less energy to refine the oil into diesel.
They're keeping click-trails (or whatever they call them now). They need to insert what cookie was assigned to you so they can use it in reporting later.
Start with a frontend of servers that ONLY forward mail to your spam filters.
In the middle are your spam filters. Run SpamAssassin in daemon mode. These guys will forward mail to your delivery machines, using a DB-backed forwarding table.
The delivery machines run IMAP. While I haven't used it in about 2 years now, Cyrus IMAPd was a great system when I used it. It will do virtualization for you. Your users can connect to any of the IMAP servers and their requests will get forwarded to the correct server.
With this setup, we supported about 45k mail accounts using 5 servers. The load never got about.5.
Note that you're still SOL in the case of a server failure. However, if you study up on IMAP and POP3, you'll discover that they can't handle server failures at a design level. There's simply no way to handle losing a server.
I would find it really cumbersome to leave the highway, find a grocery or hardware store, park, get my bag of pellets, wait some time in the que at the checkout, put the pellets in my car and drive back to the highway, just to fill up my car with some fuel.
s/grocery or hardware store/gas station/g s/checkout/pump/g s/get my bag of pellets//
I'm trying to figure out how you got an "insightful" Mod, and just not seeing it.
The Karma has 20 Gigs of space. I've seem some talk of a 40 Gig upgrade for it (warrantee voiding, of course).
20G gets you a hell of a lot of music. And if you've got more music than will fit, the management software will shuffle music around based on your listening patterns.
Just how much music do you need on your portable device?
Photos from my Fuji E550 will result in a 30" x 20" print at slightly better than 150dpi. Given that a modern photo processor is only prints at 300-330dpi, I don't think the quality would be particularly horrid.
There's a weekly summary of -current activity posted by Mike Joihnston, mirrored in HTML at http://www.xl0.org/FreeBSD/ and available as an RSS feed at http://excel.xl0.org/cgi-bin/rss.py. While it's not as exhaustive as Kerneltrap, it's very good.
French is used where very precise language is needed and for cases where translation will be done. Apparently it's very difficult to be vague in French.
Until there's a 150+ dpi monitor available that's cheap enough for businesses to buy, paper isn't going to die. Comprehension at 72dpi is just too low. For documents where graphics are the majority of content, it is probably acceptable. But for applications involving mostly text, it won't. My wife works in textbook publishing. They work with documents on the screen and print them for proofing simply because the error rate goes up significantly on the screen. A 72dpi printout results in 25% less comprehension than a 150dpi printout.
There was an interview on NPR uite some time ago with someone from starbucks, and the interviewer asked him about starbucks so close to each other. He had a story about it that goes something like this:
It was actually accidental. When the new store opened (across the street from the old store), the old store's sales increased 20%, and the new store nearly matched it. So we did some reasearch and found that if we can put locations within 2-3 miles of eachother, the revenue of both stores will be higher.
The story was on maybe a year or more ago, so obviously I'm strongly paraphrasing.
At any rate, remember: being able to spit on one starbucks from another starbucks isn't really their idea. They just went with observed phenomina.
Before resorting to name calling, try providing a reference (as a previous poster did).
I'll give the nod to g.729 at 8k. Once again, after overhead it's 31k/s (ethernet). I'll concede that is a smaller number than I recalled. However, at 8-10 calls per landline, it still won't replace telcos any time soon.
VoIP isn't that easy (or: You need more bandwidth)
on
Do-It-Yourself VOIP Telco
·
· Score: 4, Informative
You need more bandwidth than you think. Remember, ADSL and cable are asymmetric. That upstream bandwith is usually 256-384k. Each VoIP call is going to take anywhere between 24 and 64k of that just for the audio. Add on to that the administration overhead (UDP/IP and whatever stream management protocol you're using), and it starts to chew away at your bandwidth. Additionally, the connection you've got is designed for bursty traffic. VoIP is most definitely NOT bursty (unless you use silence suppression, which I've yet to see a vendor get right). If you packet delay gets over 150ms, you're going to be upset. Jitter larger than about 50-80ms is going to screw with your call quality. I've done VoIP networks, and can attest to the catestrophic effects of just a small amount of jitter when you start to get near your 150ms limit.
Don't get me wrong: VoIP is here and going strong. But it's doing so in high-quality networks that can afford to supply fixed-bandwidth reservation, , not commodity broadband products.
Hybrid mileage varies by season and driving habits: In the summer, I get 36-38mpg. If I jackrabbit starts and drive like an ass, it'll drop to 34. In the winter, I get 39-42mpg. If I jackrabbit starts and drive like an ass, it'll drop to 36.
I live in Austin, with plenty of hills to kill my mileage. When in flatter parts of Texas, such as Houston, my mileage improves by about 2mpg.
Instead, the "meek" originally intended was a word to describe a ready and willing warrior.
Can you give me a reference for this? The OED has no mention of this inversion of meaning. The closest it gets is the primary obsolete meaning, "Gentle, courteous, kind. Of a social superior: merciful, compassionate, indulgent." (see http://dictionary.oed.com, subscription required).
Slashdot Mirror
Hm. So you're spreading the same FUD, but with different words?
1) Given that you're (probably) using VoATM, you're comparing apples to Oranges. My neighbor has cable phone. It was out for a little over a day two months ago -- our internet connection (and phone) worked fine.
2) Right. You're a phone company, not a VoIP provider. You route your calls over the public switched telephone network, and are at the mercy of all the thousands of switches that live between you and the destination. Also see #1.
3) I've needed to call 911 twice now on my vonage service, once about 2 years ago and then again about a month ago. Both times my call went through to my local 911 service immediately. No transfers, no national call center, no delays. Dial, *ring*, *click*, "Please state the nature of your emergency." 311 service (non-emergency police/fire/city service) has been the same way.
4) In over two years, I've *never* needed to call Vonage, so I can't comment on that.
I know you were trying to be cute, but RIAA is compensated for music played at a funeral if the music is supplied by the funeral home. Technically, any performance of a copyrighted work entitles the copyright holder to whatever royalties they see fit to negotiate. This fee is usually hidden from you (be that by advertising, payola, subscription fee or the like), but it still happens.
You're mistaking carrier-grade voice service with a data SLA.
Carrier-grade services require that a telco provide dialtone, routing, completion, and ring within certain time limits a certain percentage of the time. In all my years of dealing with telcos, I've only missed a dialtone twice. I've gotten failed routing far more often, but still well within 99.999% of the time. My data circuits, on the other hand, have failed often.
Printers (the hardware) use the CMYK color-space as well. My photo printer uses CMYK plus red, blue, and grey, although the color space it is printing in is still just CMYK.
Nonsense, everyone does not backup on USB disks. Tapes have the advantage of offsite storage in the event of a disaster. You certainly are not going to take a USB drive to the bank vault weekly or monthly.
I do. Once a month, my backup drive comes back from the bank, gets updated, and goes back to the bank. But I'm pretty sure I'm the exception to the general rule.
It's more accurate to say that the wheel is free-spinning. It isn't contributing to drive power, but it's not drawing any current, either. It can still steer, so it's not off at some odd angle.
Additionally, there's only been a couple days worth of data -- noone really knows why the motor stalled.
There are several organizations that are required by law to keep records of data for several years. An example:
When I was in the telecom field, we were required to keep a log of every call made for 6 years. Now imagine you are a tiny mom and pop organization -- let's just call it Sam and Bob's Communications. You buy another small mom-and-pop sop, Art, Trent, & Trevor. You've now got a combined customer base of, say 500 million people. Half of them also have a cell phone, and 20% have two phone lines. That's a lot of data.
And, of course, there's the ever-present need for Homland Security to log every breath that every person in america takes.
Paper tends to NOT biodegrade in landfills. To degrade, it needs water and air, neither of which it ends up getting in a landfill.
That said, it is a good carbon sink. If only we released less carbon harvesting trees and making paper than they stored when under ground...
This was tried back in the 90s with text-based MUDs. It doesn't work really well -- nevermind the client understanding it, you've got to keep the user base synced on the different servers, You have to deal with different "zones" having different performance, etc. IT just sucks pretty badly all around.
Look at inkjets again. I've got an Epson R800. Photo life is estimated 80 years, and I can't see any dots in the image. We routinely print 8x10s and nobody has ever guessed that they weren't standard prints from a photo processor. I've never had ink smear, even when it's gotten water on it (I was very suprised by this). Dye sub printers do give a more "smooth" image than an ink jet, but at 1.5 pL per drop, you'de have to be using a jeweler's loupe to tell the difference.
Dye sub printers use their own cartridges. The ink's gotta come from someplace, you know. The cheaper dye subs lock you into a "cartridge" system, where you're paying for paper and ink, with no choice. If I'm going to do that, I might as well get a printer that can print standard pages as well (my R800 will spit out something like 15ppm of 8x10 standard text. What's you dye sub do?)
Now, my R800 isn't your standard consumer printer -- it was $380 when I bought it, and a full ink refill runs me $120 to print around 300 4x6 photos. But my photos come out far better than your standard $50-$100 printer.
What I'd REALLY like to see is a consumer direct photo printer. There's no reason we shouldn't be printing directly to photo paper in today's world -- that's what all the 1-hour "wal-mart" photo shops are doing.
Turn off your printer. I routinely go for weeks between prints, and I've only had the nozzles clog once -- I had neglected to turn the printer off. When you turn it off, the printer "parks" the heads in an air-tight "container." Since the ink doesn't dry out, no clogs.
Actually, I did have the nozzles clog one other time -- I had used cartridges that weren't Epson brand, a mistake I've never made again.
He was talking about diesel fuel. Diesel requires significantly less refining to produce. Not only do you get more diesel per barrel of raw crude oil, it takes less energy to refine the oil into diesel.
They're keeping click-trails (or whatever they call them now). They need to insert what cookie was assigned to you so they can use it in reporting later.
Start with a frontend of servers that ONLY forward mail to your spam filters.
.5.
In the middle are your spam filters. Run SpamAssassin in daemon mode. These guys will forward mail to your delivery machines, using a DB-backed forwarding table.
The delivery machines run IMAP. While I haven't used it in about 2 years now, Cyrus IMAPd was a great system when I used it. It will do virtualization for you. Your users can connect to any of the IMAP servers and their requests will get forwarded to the correct server.
With this setup, we supported about 45k mail accounts using 5 servers. The load never got about
Note that you're still SOL in the case of a server failure. However, if you study up on IMAP and POP3, you'll discover that they can't handle server failures at a design level. There's simply no way to handle losing a server.
I would find it really cumbersome to leave the highway, find a grocery or hardware store, park, get my bag of pellets, wait some time in the que at the checkout, put the pellets in my car and drive back to the highway, just to fill up my car with some fuel.
s/grocery or hardware store/gas station/g
s/checkout/pump/g
s/get my bag of pellets//
I'm trying to figure out how you got an "insightful" Mod, and just not seeing it.
The Karma has 20 Gigs of space. I've seem some talk of a 40 Gig upgrade for it (warrantee voiding, of course).
20G gets you a hell of a lot of music. And if you've got more music than will fit, the management software will shuffle music around based on your listening patterns.
Just how much music do you need on your portable device?
Photos from my Fuji E550 will result in a 30" x 20" print at slightly better than 150dpi. Given that a modern photo processor is only prints at 300-330dpi, I don't think the quality would be particularly horrid.
There's a weekly summary of -current activity posted by Mike Joihnston, mirrored in HTML at http://www.xl0.org/FreeBSD/ and available as an RSS feed at http://excel.xl0.org/cgi-bin/rss.py. While it's not as exhaustive as Kerneltrap, it's very good.
French is used where very precise language is needed and for cases where translation will be done. Apparently it's very difficult to be vague in French.
Until there's a 150+ dpi monitor available that's cheap enough for businesses to buy, paper isn't going to die. Comprehension at 72dpi is just too low. For documents where graphics are the majority of content, it is probably acceptable. But for applications involving mostly text, it won't. My wife works in textbook publishing. They work with documents on the screen and print them for proofing simply because the error rate goes up significantly on the screen. A 72dpi printout results in 25% less comprehension than a 150dpi printout.
There was an interview on NPR uite some time ago with someone from starbucks, and the interviewer asked him about starbucks so close to each other. He had a story about it that goes something like this:
It was actually accidental. When the new store opened (across the street from the old store), the old store's sales increased 20%, and the new store nearly matched it. So we did some reasearch and found that if we can put locations within 2-3 miles of eachother, the revenue of both stores will be higher.
The story was on maybe a year or more ago, so obviously I'm strongly paraphrasing.
At any rate, remember: being able to spit on one starbucks from another starbucks isn't really their idea. They just went with observed phenomina.
Before resorting to name calling, try providing a reference (as a previous poster did).
I'll give the nod to g.729 at 8k. Once again, after overhead it's 31k/s (ethernet). I'll concede that is a smaller number than I recalled. However, at 8-10 calls per landline, it still won't replace telcos any time soon.
You need more bandwidth than you think.
Remember, ADSL and cable are asymmetric. That upstream bandwith is usually 256-384k. Each VoIP call is going to take anywhere between 24 and 64k of that just for the audio. Add on to that the administration overhead (UDP/IP and whatever stream management protocol you're using), and it starts to chew away at your bandwidth.
Additionally, the connection you've got is designed for bursty traffic. VoIP is most definitely NOT bursty (unless you use silence suppression, which I've yet to see a vendor get right). If you packet delay gets over 150ms, you're going to be upset. Jitter larger than about 50-80ms is going to screw with your call quality. I've done VoIP networks, and can attest to the catestrophic effects of just a small amount of jitter when you start to get near your 150ms limit.
Don't get me wrong: VoIP is here and going strong. But it's doing so in high-quality networks that can afford to supply fixed-bandwidth reservation, , not commodity broadband products.
Hybrid mileage varies by season and driving habits:
In the summer, I get 36-38mpg. If I jackrabbit starts and drive like an ass, it'll drop to 34.
In the winter, I get 39-42mpg. If I jackrabbit starts and drive like an ass, it'll drop to 36.
I live in Austin, with plenty of hills to kill my mileage. When in flatter parts of Texas, such as Houston, my mileage improves by about 2mpg.
Instead, the "meek" originally intended was a word to describe a ready and willing warrior.
Can you give me a reference for this? The OED has no mention of this inversion of meaning. The closest it gets is the primary obsolete meaning, "Gentle, courteous, kind. Of a social superior: merciful, compassionate, indulgent." (see http://dictionary.oed.com, subscription required).