On a DS1, each "channel" is called a timeslot. Those timeslots are allocated for voice, video or data. In the case of DS1, signalling can be done in-band on each channel,
or out-of-band a la a PRI D channel.
A PRI interface can be provided on top of a DS1 circuit, in which case there would be B and D channels. However, voice can be provided on a DS1 without ISDN. This is called a "supertrunk".
B and D channels are ISDN terms and wouldn't be used with a regular data (or voice) non-ISDN DS1 circuit.
Just thought I'd help you with the lingo. Cheers mate.
Behind the announcements of all these new product releases and upgrades, EchoStar finally got around to upgrading the software on the DishPVR 508 to bring it up to par with TiVo (in some respects). It has a brand new record menu, and the timers menu now shows program titles instead of scheduled time and channels to make it more PVR-like.
The new DishPVR also supports slow motion and instant replay, by using the pause button and the arrows on your remote. There are a bunch of bugfixes and generally faster guide parsing/display as well. Your receiver should download it tonight if it is powered off and set to automatically install new software.
Insightful, eh? Here are my thoughts on your post.
The ONLY way most people are going to be able to see HD content is VIA OTA broadcast. Satellite is more irrelevent now that the DTV/EchoStar merger didn't go through - they simply don't have bandwidth to uplink HD networks. And now they have to carry locals, again there is no bandwidth to uplink via HD. LA and NY are the exceptions.
Most cable networks (take ATT/Comcast for instance) have just now migrated onto HFC so that they can carry digital cable, telephony and cable Internet and are now just approaching bandwidth capacity using their current headend equipment. Cable has the slowest adoption rate for new technology, since headends have to be updated for new features. Cable will be the last in line to roll HD to their customers.
Broadcast OTA has been available for almost 5 years in LA - and only now in the last year are cable companies starting to light up HD channels.
Now, technology adoption aside, let's talk cost: how much is an OTA tuner? $350 for an awesome Samsung T151 (ref: crutchfield.com). How much is an EchoStar Dish HD tuner? $550, not including the new compression card, the OTA decoder OR the 2nd satellite you'll need to hit the 3 HD channels. So, $800 to $1000 later you'll be watching HBO, Showtime or the demo channels in HD. After adding $11/month to your current sat bill per channel.
How much for OTA access to MORE content then is being provided over satellite? $0/month. Just a $19 antenna and a $350 tuner or supported TV/monitor. I just read an article where RCA said they will be including HD tuners in EVERY TV they make, from 19" on up - that they realize it will increase the cost of their TV sets. This is intended to spur adoption of HD sales.
I agree with you on convergence, as well as a lot of other factors will lead to HD adoption. These are: sports (most buyers of big screens), movie fanatics and more.
You're an idiot, or a troll. I've used Spamcop as my primary IMAP mailstore for almost 2 years. I have only -once- had a single message blocked from a recipient. That is a single message out of over 4,000 messages.
Spamcop does an excellent job at blocking unwanted advertisements and I will renew my subscription once it expires. No other ISP does as good of a job as they do. Not bad for 40 smackers.
There are a few Cisco-related features in both CatOS and IOS that can improve spanning-tree convergence on large networks - but they have to be engineered at all layers from the get go. (core, distribution and access) All of your switches must have versions of software that support them as well.
Spanning tree backbonefast lets your core layer switches reconverge after a link/switch failure quite rapidly. Used in connection with spanning tree uplinkfast, your distribution and access layer switches can switch over to another redundant copper or gigabit fiber link quickly without waiting for full spanning tree convergence.
Another feature that seems to be widely used (and probably the most dangerous), is spanning-tree portfast - this gives access layer switches the capability to immediately begin forwarding a workstation's packets on the network. portfast should NOT however be used on trunk, channel or hub links as it can create a bridge loop by a user/site support mistakenly plugging in a crossover cable.
Improves playback of large media files and peripheral device file copying.
Resolves a rare situation in which an inadvertently-ejected CD cannot be remounted and applications accessing the disc cannot be quit.
Addresses an issue in which an enhanced CD's data and audio sessions do not appear as expected on the desktop when using iTunes and inserting the disc more than once.
Addresses a formatting issue that could occur when printing or previewing some TIFF documents.
Addresses an issue in which ColorSync settings for some third-party displays are not retained after restarting or logging out.
Addresses an issue when printing more than one copy of a file to a postscript printer from Adobe PhotoShop 7.0.
Improves compatibility with HP 4MV printers when printing over an Ethernet network.
Adds support for additional third-party disc burners, including: LaCie d2 48x24x48x, Sony CRX-820E, Toshiba SD-R2212 and SD-R1202, Pioneer DVR-105, and Yamaha CDW-F1 44x24x44x models.
Networking and Modem Enhancements
SMB shared volumes may now be browsed by their user-assigned name.
Resolves an issue in which an incorrect "Change Password Failed" message may appear when when changing a Mac OS X 10.2 Server client's password via AFP.
Addresses an issue in which some internal Apple modems may fail to respond, displaying a "Could not open the communication device" message.
Addresses an issue in which no sound is produced by some internal Apple modems until several seconds after making a connection.
Resolves an issue in which some internal Apple modems fail to respond when connecting to the Internet.
Error and warning dialogs boxes are no longer displayed if you cancel the mounting of an iDisk from the authentication dialog box.
Addresses a startup issue that could occur if an LDAP server designated in Directory Access is not available.
Addresses a data loss issue which could occur when copying a file whose filename ends with "#02," or other hexadecimal number, via AFP.
Available disk space on an iDisk is updated more quickly after deleting files.
Addresses an issue in which an iDisk would appear with an inaccurate 1GB capacity and 1023 MB available.
Addresses some issues that could cause a "error -36" alert message when copying files to an iDisk.
Address Book and Mail Enhancements
Resolves an issue in which Address Book could become unresponsive when using the Large Type menu and switching between applications.
Address Book can now better import groups from prior versions of Address Book.
Resolves a potential issue when transferring vcards from Address Book to a cellular phone via Bluetooth.
Improves Address Book compatibility with users that are already on an AIM Buddy List.
Allows address information to be imported when dragging vCards to Address Book which were created with Address Book from any version of Mac OS X 10.1.
Corrects Address Book address format for Australian entries.
Improves responsiveness when switching in and out of edit mode in the Address Book.
Address Book entries without a name included now appear in the All group list with the email address as the name, instead of "No Name".
Addresses the rare issue in which Mail may unexpectedly quit when replying to a message.
Improves the responsiveness of the Mail application's date column and thread highlighting feature.
Improves the reliability of transitioning a Mac OS X 10.1.5 Address Book.addressbook to an Address Book for Mac OS X 10.2 format.
Application Enhancements
Improves compatibility for Microsoft PowerPoint presentations that use animations.
Addresses a potential Disk Copy volume imaging permissions issue that could affect non-Admin users.
Improves updating of applications installed with Mac OS X, updating them only if they have not been relocated or deleted.
Addresses a display issue that may occur when Command-clicking a URL in some third-party applications, including BBEdit and Mailsmith.
Addresses a situation in which the menu bar and Dock are not shown, after quitting a third-party game application, until the desktop is clicked.
Addresses an issue in which some PDF files created within Mac OS X do not open as expected with Adobe Acrobat Reader 5.
Reduces occurrences of "missing text" when browsing some web pages.
Improves compatibility for FAXstf when a fax is being sent while the computer is restarted, shut down, or entering sleep mode.
Other Enhancements
Provides a foundation for the journalling filesystem (JFS), which may currently be enabled via Disk Utility on Mac OS X Server systems.
Improves security when using a read-write disk image volume in which "Ignore ownership on this volume" has been deselected.
Addresses an issue in which automatic Software Update notifications are turned off when upgrading from Mac OS X 10.1 to Mac OS X 10.2.
Addresses an issue in which, after upgrading to Mac OS X 10.2, an unexpected value in a user's com.apple.LaunchServices.plist file could prevent proper startup.
Addresses a potential kernel panic situation when using three video cards and more than 512 MB of RAM.
Addresses a potential issue in which an unauthorized user could log in as a deleted user.
Improves the Find function of the Finder by no longer finding items in invisible folders.
Reduces the time required for switching between Sherlock channels when using a low-bandwidth connection
Sherlock channels may now be saved as a file.
Allows automatic login to work as expected following an Archive and Install.
Improves time needed to wake some portable computers.
Addresses a potential loss of video when waking some PowerBooks from sleep after using DVD Player.
Addresses a potential issue in which the computer does not respond when quitting DVD Player on some portable computers.
Includes Apache version 1.3.27.
Addresses a potential security issue in which access to system daemons could be blocked when RFC-based services are enabled.
keith,
can rendezvous-based packets be routed across a wan using multicast routing (like dvmrp or pim) to enable applications to function? i understand that rendezvous is an implementation of multicast DNS with some logic and guidelines that determine how and when applications can publish information. i've read the apple dev notes on it, but they don't talk about it being routable. since you've gone through the rfc's with a fine tooth comb, i figured you'd know.
Mac OS X isn't a platform that other people use? Quicktime runs fine on it, and it's a Unix variant.
Apple also open-sources their Quicktime Streaming Server package for Unix as well. No other commercial vendor opens their streaming software (I forgot Shoutcast).
Just because the APSL doesn't mesh with the GPL and you can't have a royalty free open-source high quality media player after Apple paid for all the R&D and marketing, doesn't mean that Quicktime is a bad streaming platform either.
Make sure you do this on a machine that supports Quartz Extreme. Drag a translucent Terminal window over it for added fun. Watch how little it effects performance, trying playing some MP3s at the same time. Cool, huh?
(fix the spaces in the path above because slashdot eats them)
This is awesome! I'm trying it out now with my Xerox WorkCentre XK50cx. This will let you use just a generic Postscript driver, even your Windows printer doesn't have Mac drivers. Cool. Mod him up!
Thanks a bunch for your informative post. I ordered one of those cables with 2 day shipping. I just bought a G4/800 this weekend with a dual headed Radeon 7500. I already have two 17" CRTs so I'm really excited.
I just made my return to Mac-land. Bought a G4/800 with 768 megs of RAM and a 40 gig HD with Radeon 7500 over the weekend. It runs OS X 10.1.5 freaking sweet! Can't wait to get 10.2 on it.
Got a sweet deal on it for $1399, CompUSA was making room for all the dual processor G4's. Hope you enjoy it.
-Pat
Where can I buy a modded Xbox?
on
LinuXbox Boots
·
· Score: 2
Where is a good place in the US to buy a modded chipped Xbox that is reputable and actually accepts credit cards? It would be helpful if they actually had a customer service number too.
I use it with my wife all the time, we can even set up a place to have Lunch nearby. It even sends you an SMS when your spouse is trying to locate you. It's really cool!
UUCP, also known as Unix-to-Unix Copy Protocol used serial lines and dial up connections to exchange e-mails and Usenet posts, or any other type of files. It was later adapted to support live TCP/IP connections but was definitely the defacto standard for "networking". UUCP was supported on most Vax systems and Unix variants. There were even DOS UUCP stacks for offline mail and Usenet reading (look for Waffle UUCP - was quite cool back in the day).
To exchange information to other hosts, before protocols like DNS became mainstream there was a public Systems repository. The addresses indicated showed the path that a mail or post would take before it would be delivered. A single post make take 5 modem calls between hosts at varying times of the day (depending on long distance costs) before it would show up. It definitely wasn't as fast as it is now over a live TCP/IP network.
I still believe that some newspaper wire companies and stuff still use UUCP to dial up and move news articles. UUCP was cool for its time. As much as people clamored for lots of bandwidth and a nice static IP, it was cool enough just to BE a UUCP node. UUCP was much like later protocols like FidoNet - but UUCP used Arpa compatible mail headers so it could be used for sites that had live Arpa network connectivity.
Anyways, hope that helps. You old-timers that know more then me feel free to correct me. I'll go back to listening to the Dodgers Game.
-Pat
I considered the i95cl - why not a Ericsson T68i?
on
Motorola's i95cl
·
· Score: 3, Informative
I have Nextel currently with an i50sx. I like the service, works great for work. I looked at the i95cl, but price to performance wise Motorola's have a huge total cost of ownership with little feature parity with newer phones.
Check this out, a $399 Motorola i95cl gets you:
A color display, with no programmable color themes, no picture caller ID and no image upload. (maybe in an upgrade they say.)
A nice Java Virtual Machine with some downloadable applications from Mot/Nextel.
Two-way, and the rest of the Nextel iDEN features.
But, a $199 Sony Ericsso T68i on AT&T gets you:
Bluetooth AND Infrared.
GPRS and a color graphic-supported microbrowser.
A color display with uploadable themes, images, ringers, animations, screen savers.
Killer talk and standby times
Synchronization capable
Anyways, I just ordered a T68i from AT&T Wireless GSM. They are in the process of building out their GSM coverage, but I think it's worth it to be an early subscriber and taking advantage of lower phone and monthly costs. One thing about Nextel, is their rates are expensive!
I went! And no one showed up! You bastards! I made a nice Slashdot sign and everything.. my wife and I ended up eating a nice $70 dinner and had a few Sex on the Beaches.. Man talk about hot.. I had some szcheuan prawns. Big fat ones.
No one would have wanted to sit next to me anyways. Ah well, I'll be host again next month. You punks better show up.
Slashdot Mirror
A PRI interface can be provided on top of a DS1 circuit, in which case there would be B and D channels. However, voice can be provided on a DS1 without ISDN. This is called a "supertrunk".
B and D channels are ISDN terms and wouldn't be used with a regular data (or voice) non-ISDN DS1 circuit.
Just thought I'd help you with the lingo. Cheers mate.
-Pat
The new DishPVR also supports slow motion and instant replay, by using the pause button and the arrows on your remote. There are a bunch of bugfixes and generally faster guide parsing/display as well. Your receiver should download it tonight if it is powered off and set to automatically install new software.
My source: Usenet
-Pat
The ONLY way most people are going to be able to see HD content is VIA OTA broadcast. Satellite is more irrelevent now that the DTV/EchoStar merger didn't go through - they simply don't have bandwidth to uplink HD networks. And now they have to carry locals, again there is no bandwidth to uplink via HD. LA and NY are the exceptions.
Most cable networks (take ATT/Comcast for instance) have just now migrated onto HFC so that they can carry digital cable, telephony and cable Internet and are now just approaching bandwidth capacity using their current headend equipment. Cable has the slowest adoption rate for new technology, since headends have to be updated for new features. Cable will be the last in line to roll HD to their customers.
Broadcast OTA has been available for almost 5 years in LA - and only now in the last year are cable companies starting to light up HD channels.
Now, technology adoption aside, let's talk cost: how much is an OTA tuner? $350 for an awesome Samsung T151 (ref: crutchfield.com). How much is an EchoStar Dish HD tuner? $550, not including the new compression card, the OTA decoder OR the 2nd satellite you'll need to hit the 3 HD channels. So, $800 to $1000 later you'll be watching HBO, Showtime or the demo channels in HD. After adding $11/month to your current sat bill per channel.
How much for OTA access to MORE content then is being provided over satellite? $0/month. Just a $19 antenna and a $350 tuner or supported TV/monitor. I just read an article where RCA said they will be including HD tuners in EVERY TV they make, from 19" on up - that they realize it will increase the cost of their TV sets. This is intended to spur adoption of HD sales.
I agree with you on convergence, as well as a lot of other factors will lead to HD adoption. These are: sports (most buyers of big screens), movie fanatics and more.
-Pat
Spamcop does an excellent job at blocking unwanted advertisements and I will renew my subscription once it expires. No other ISP does as good of a job as they do. Not bad for 40 smackers.
-Pat
Spanning tree backbonefast lets your core layer switches reconverge after a link/switch failure quite rapidly. Used in connection with spanning tree uplinkfast, your distribution and access layer switches can switch over to another redundant copper or gigabit fiber link quickly without waiting for full spanning tree convergence.
Another feature that seems to be widely used (and probably the most dangerous), is spanning-tree portfast - this gives access layer switches the capability to immediately begin forwarding a workstation's packets on the network. portfast should NOT however be used on trunk, channel or hub links as it can create a bridge loop by a user/site support mistakenly plugging in a crossover cable.
Hope this helps!
-Pat
-Pat
Digital Hub and Peripheral Device Enhancements
Networking and Modem Enhancements
Address Book and Mail Enhancements
Application Enhancements
Other Enhancements
(Some Apple zealotry for today, since the moderators are on a roll..)
-Pat
I love my XM radio, and I just got a Dish PVR at home. Life is good.
-Pat
keith, thanks for the reply. that's a bum deal.
thanks for your help. have a good weekend.
-pat
Just because the APSL doesn't mesh with the GPL and you can't have a royalty free open-source high quality media player after Apple paid for all the R&D and marketing, doesn't mean that Quicktime is a bad streaming platform either.
-Pat
Make sure you do this on a machine that supports Quartz Extreme. Drag a translucent Terminal window over it for added fun. Watch how little it effects performance, trying playing some MP3s at the same time. Cool, huh?
(fix the spaces in the path above because slashdot eats them)
-Pat
-Pat
Thanks a bunch for your informative post. I ordered one of those cables with 2 day shipping. I just bought a G4/800 this weekend with a dual headed Radeon 7500. I already have two 17" CRTs so I'm really excited.
-Pat
Got a sweet deal on it for $1399, CompUSA was making room for all the dual processor G4's. Hope you enjoy it.
-Pat
Thanks!
-Pat
-Pat
I love my T68i!
-Pat
-Pat
To exchange information to other hosts, before protocols like DNS became mainstream there was a public Systems repository. The addresses indicated showed the path that a mail or post would take before it would be delivered. A single post make take 5 modem calls between hosts at varying times of the day (depending on long distance costs) before it would show up. It definitely wasn't as fast as it is now over a live TCP/IP network.
I still believe that some newspaper wire companies and stuff still use UUCP to dial up and move news articles. UUCP was cool for its time. As much as people clamored for lots of bandwidth and a nice static IP, it was cool enough just to BE a UUCP node. UUCP was much like later protocols like FidoNet - but UUCP used Arpa compatible mail headers so it could be used for sites that had live Arpa network connectivity.
Anyways, hope that helps. You old-timers that know more then me feel free to correct me. I'll go back to listening to the Dodgers Game.
-Pat
Check this out, a $399 Motorola i95cl gets you:
- A color display, with no programmable color themes, no picture caller ID and no image upload. (maybe in an upgrade they say.)
- A nice Java Virtual Machine with some downloadable applications from Mot/Nextel.
- Two-way, and the rest of the Nextel iDEN features.
But, a $199 Sony Ericsso T68i on AT&T gets you:- Bluetooth AND Infrared.
- GPRS and a color graphic-supported microbrowser.
- A color display with uploadable themes, images, ringers, animations, screen savers.
- Killer talk and standby times
- Synchronization capable
Anyways, I just ordered a T68i from AT&T Wireless GSM. They are in the process of building out their GSM coverage, but I think it's worth it to be an early subscriber and taking advantage of lower phone and monthly costs. One thing about Nextel, is their rates are expensive!-Pat
No one would have wanted to sit next to me anyways. Ah well, I'll be host again next month. You punks better show up.
-Pat
Fire me an e-mail back or post on here.. and we'll meet up anyways.
-Pat