or Connect
AppleInsider › Forums › Software › Mac OS X › Road to Mac OS X Leopard: iChat 4.0
New Posts  All Forums:Forum Nav:

Road to Mac OS X Leopard: iChat 4.0

post #1 of 31
Thread Starter 
Apple has taken iChat instant messaging in interesting new directions with Mac OS X 10.5 Leopard, introducing support for video effects and screen sharing. Here's a look at what's new.

This report goes to great lengths to follow the origins, history, and maturity of online messaging clients. For those readers with limited time or who are only interested in what's due in Leopard, you can skip to page 2 of this report.

iChat Origins

Sending text messages between computers is one of the oldest functions around. The Unix talk command was originally used to pass messages between user accounts on the same system, and later expanded to allow users to address users on other systems over a network like an instant alphanumeric pager.

Internet Relay Chat (below) expanded upon the idea of passing messages directly to a specific host by using a server-based protocol similar to email; chat messages are relayed through IRC servers. Once logged into an server, an IRC client could participate in group chats on various channels supported on that server or distributed across a network of affiliated IRC servers.



AOL's Instant Messenger

In the mid 80s, a variety of online services introduced home users to networking over dial up, including the Source, CompuServe, Prodigy, GEnie, and Quantum. In 1985, Apple partnered with GE to develop a graphical online service for the Macintosh called AppleLink. GE's network access rates were prohibitively expensive, which limited use of the system only to Apple's dealerships.

As their popularity grew, the cost of accessing online services dropped, albeit slowly. Quantum had been operating a more affordable dial up service for home users of the Commodore 64 called Quantum Link. Among the features of Quantum Link were OnLine Messages (below), which allowed subscribed users to participate in real time chats with each other. Sending OLMs was a premium service that charged an extra minute rate on top of Quantum Link's access fees.



Apple struck a partnership with Quantum in 1987 to develop a graphical, consumer-oriented service called Apple Link, Personal Edition. It was released in May 1988. However, Apple almost immediately lost interest in developing online services; by the end of 1989, Quantum took it solo and renamed it America Online. As noted in Apple and the Origins of the Web: Consumer Online Systems Before the Web, Apple briefly ran back into partnership with AOL to develop eWorld -- essentially a re-branded America Online for Mac users -- between 1992 and 1994.



The new AOL popularized instant messaging and the idea of a buddy list, which indicated the online status of other users. As AOL and other online services began opening Internet gateways for email and later web traffic (above), AOL developed its presence indication system as an Internet service called the Open System for CommunicAtion in Realtime. Despite the name, OSCAR was not really open to interoperability, but rather a proprietary system; AOL limited all access to it from anything outside its own AOL IM clients, although third parties kept using reverse engineering to offer alternative replacements.

ICQ, MSN, Yahoo!

In 1998, AOL bought rival ICQ and merged the two services to login to the same OSCAR network. In 1999, Microsoft introduced its own MSN Messenger, and Yahoo! later followed with its Yahoo IM product. Unlike common email systems based on open standards, all three IM systems used their own proprietary methods for accounts, messaging, and presence indication, so users of each network couldn't directly send messages to each other or see if members on other networks were online.

AOL rebuffed Microsoft's attempts to build interoperability between the two systems, fearing that Microsoft would use its Windows monopoly to embrace, extinguish, and flatten AOL's remaining marketable product as it had done with DOS application partners with Office, Java in its partnership with Sun, and its other partnerships, as related in the article How Microsoft Got Its Office Monopoly.

Apple's iChat Instant Messaging

In 2002, Apple introduced the original iChat 1.0 (below) as an IM client for Mac OS X 10.2 Jaguar. Rather than operating its own IM network, Apple partnered with AOL, which allowed iChat to find the online status and chat with its existing AOL users. Mac users could either use an existing AOL account or sign up for a free .Mac account and use it on the AOL IM system.



Shortly before the release of 10.3 Panther, Apple released a beta copy of iChat AV 2.0 (below), which added audio and video chat features. This new functionality was based on the Session Initiation Protocol, an open standard for Voice over IP and video conferencing. The new iChat AV 2.0 (below) was included in Panther. Early the next year in 2004, AOL included support for SIP-based video conferencing in its own AIM 5.5 PC client, allowing interoperability between users on Macs and Windows.



When either iChat AV or AIM sets up a text chat, messages are relayed through AOL's OSCAR servers. However, when they perform video chats, OSCAR is only used to look up presence indication. Once you discover a user in your Buddy List, an audio or video chat is performed directly between the two clients, with no server intermediary.

Open Instant Messaging

SIP is the product of an Internet Engineering Task Force, and serves as the IP networking standard for video conferencing. It largely replaces H.323, the older telephony standard for video conferencing developed by the ITU, and the basis of Microsoft's now discontinued NetMeeting product.

In parallel with SIP, another open IETF standard commonly referred to as Jabber has been developed to deliver an interoperable IM networking system based on the Extensible Messaging and Presence Protocol, or XMPP.

Jabber is essentially an open alternative to proprietary IM systems such as AIM, MSN, or Yahoo IM, just as standard Internet email protocols emerged as alternatives to the proprietary messaging systems of CompuServe, AOL, and closed corporate systems. Rather than being a central system of accounts managed by a single company, anyone can set up a Jabber server, just as anyone can set up their own Internet email server. Jabber servers relay messages and presence indication across the Internet just as email servers pass messages.

Another similarity between Jabber and open email is that closed IM systems can build gateways to Jabber, allowing their messages and presence indication to be shared with clients on any network. AOL, CompuServe and other proprietary systems built gateways to Internet email in the past; the result of that portability was that they lost their subscribers to more competitive Internet service providers. AOL, MSN and Yahoo have not yet delivered open IM gateways to Jabber, but instead appear to be trying to preserve their subscriber pools.

In late 2005, Google began offering its own IM service called GoogleTalk, based upon Jabber. Shortly afterward, Google bought a 5% stake in AOL and announced that future versions of GoogleTalk would support an interoperability gateway with AOL. Those developments spooked Microsoft and Yahoo, who had just announced an interoperability gateway agreement between their proprietary systems.



Jabber in Apple's iChat AV 3.0

In mid 2004, Apple announced that the new 3.0 version of iChat AV in Tiger would support multiple video conferencing users (above), H.264 video compression, as well as support for Jabber accounts. The new version also dropped the AOL running man logo (below) from iChat's icon.



Released with Tiger in early 2005, iChat AV 3.0 was able to work with GoogleTalk when it arrived. Until Microsoft and Yahoo! build their own Jabber gateways, iChat users would have to either:
use a separate IM client designed specifically for those systems, use a multipurpose chat client such as Adium that supports multiple, proprietary networks, or use a server gateway that automatically logs into their accounts on proprietary systems and relays messages to them or another Jabber server.
Both Apple and Google are working to create interoperability between Jabber and SIP, which overlap in some functionality. An explosion of open VoIP audio and video messaging would be devastating to the proprietary IM vendors, but would also crack open the world's telephone, long distance and mobile phone markets, replacing everything with Internet based traffic. The existing VoIP market is currently dominated by proprietary systems such as eBay's Skype.

With open VoIP based on Jabber and SIP, companies with a natural telephone monopoly or a lock on mobile phone frequencies would be washed away and replaced by Internet infrastructure. That's pushing Google to seriously eye the available radio spectrum being auctioned off early next year.

On page 2 of 2: Leopard's iChat AV 4.0; Document Sharing; Screen Sharing; Text Chat Features; and Video Conferencing Features.

Leopard's iChat AV 4.0

In Mac OS X Leopard, Apple added a variety things that might not be commonly associated with instant messaging, including document sharing and screen sharing. Why relate screen sharing with online chat? The magic answer is presence indication, the idea AOL promoted and developed around the Buddy List. Presence indication finds users online and reports their availability.

This makes iChat's Buddy List an ideal way to discover users across the Internet who have an AOL or GoogleTalk/Jabber account, but may have a dynamic IP address that makes them problematic to address directly. With AOL's OSCAR or open Jabber servers keeping track of where users are and whether they are busy or not, iChat provides an ideal context for setting up screen sharing.

Along with the remote presence indication provided by AOL or Jabber networks, iChat has also long provided another discovery protocol: Apple's own Bonjour, formerly known as Rendezvous. While AOL and Jabber track users across the Internet, Bonjour tracks users on the local network, without requiring any servers to manage things.

Bonjour uses the same automatic discovery technology as AppleTalk, which was released back in the mid 80s with the original Macintosh. Combining long distance AOL/Jabber with local Bonjour discovery means iChat provides a variety of ways to find other users you might want to share your screen with or set up in a conference. Bonjour even works when the Internet--and remote servers--are unavailable.



Document Sharing

The new iChat AV 4.0 in Leopard provides two options for document sharing (portrayed above, on Apple's website). When you drag a file into a chat with a user who can support a video chat, two drag targets are presented: one for uploading the document via file transfer, and the second for document sharing. The latter option works like a video conferencing system's document camera.

Any file that can be viewed with Quick Look can be "beamed" with document sharing. While the document is being shared, the sender sees it in a Quick Look panel view, while the viewer on the other end sees the document as a video chat. The sender can scroll through the document, leading the recipient through the file at a set pace, although there are no collaborative white-boarding features for drawing on the document. The person on the receiving end has a read-only view, so they can't mouse around in the document themselves.

Document sharing works well for photos and graphical presentations, but isn't ideal for text documents, which are hard to see in the video-like presentation. Those kinds of documents can be simply forwarded as direct file transfers using the other drop target. Applications can tie into Quick Look to provide specialized views; Keynote and iPhoto presentations and can be played with animated transitions for example.



Screen Sharing

The other entirely new feature in iChat is screen sharing (above, the new icon in the bottom of the Buddy List), which relies upon the open source VNC software. Apple earlier built the VNC server into Tiger, which can be enabled and used either by standalone clients like Chicken of the VNC, or by administrators using Apple's Remote Desktop package.

There hasn't been a really simple and obvious way for users to set up a screen sharing session however. In the new iChat, it's effortless. Click the new screen sharing icon in iChat for any user that can support the feature, and it drops down two options: share my screen or request to share theirs. Once the user on the other end approves the connection, a VNC session is setup.

The user viewing the remote screen gets their own desktop put into a "picture in picture" window. Clicking on that window swaps the remote desktop with their own, and closing the window terminates the session. The performance of screen sharing is related to the quality of the connection; it is very usable over a local WiFi network.

This feature will make it much more bearable to do long distance troubleshooting for remote users, where seeing and doing is much easier than trying to explain what's happening. Who would have thought to build screen sharing into an instant messaging client?

Text Chat Features

The new iChat AV 4.0 (below) also adds features for text chatting. The new interface drops the old brushed metal look to present a standard Loepard window with tabbed chats that appear in a sidebar. It also natively supports GoogleTalk accounts, making it easier to set one up without having to know anything about Google's server settings.

While earlier versions of iChat have long supported sending SMS messages--the real work is done by AOL's OSCAR servers--the new version presents an easy to use interface for typing in numbers. The new iChat also supports invisibility and manages file transfers in a downloads window similar to Safari.



Video Conferencing Features

Apple's iChat offers one of the best and easiest to use video conferring system anywhere, even including professional systems that cost thousands of dollars. While the idea of consumer video phones were touted in "2001: a Space Odyssey" back in the 60s, and were pitched to users since the 70s by Bell Labs, consumers never really jumped on them. The biggest problem with video conferencing is that people are often too self conscious about how they look and what's going on behind them.

Picking up the phone or sending an IM doesn't involve the fear of being immediately judged based on your appearance. To skirt around this problem, Apple expanded iChat to use its video conferencing features to perform document sharing, which takes the focus off the user and puts it on photos or a document. Two other new features in iChat that distract from the awkwardness of staring into the unblinking eye of the camera are backdrops and video effects.



Backdrops (above) replace your background using a trick from H.264 video compression. Unlike the regular pictures displayed by film, compressed video commonly only updates the screen in areas where it has changed. When you set up a photo or movie to replace your background, iChat asks you to step out of the frame, and captures what your background looks like. When you step back in, it masks around the part of the camera's image that has changed (you), and draws your selected photo or movie in place of the static background behind you. This works best if you have a well lit room, and obviously requires that your background isn't moving.

If you're more worried about your own appearance than your messy bookshelf behind you, you can also select one of the effects from Photo Booth, either to comically distort your image with mirrors and distortions, or to use one of the art filters to present yourself with some distracting blur, pixelation, or color effects.

It is also interesting to note that iChat has always presented a view to the user that is a mirror image, while sending a regular image to the remote user. The reason for this is that most of us are more used to seeing ourselves in a mirror than in video or photographs. Seeing an image of ourselves that isn't a mirrored reflection can be as uncomfortable as hearing a recording of our own voice. I didn't notice this until I compared iChat with Yahoo's video chat, which doesn't do this. The result is that iChat presents the user with a more familiar and flattering self image, which is a bit of a relief when throwing oneself on camera.

In addition to the simple background swap, iChat can perform any video trickery Quartz Composer can think up. Apple demonstrated a hologram filter that presents your image as translucent and flickering -- like R2D2's Obi Wan recording -- among others. Savvy graphics users will be able to create a variety of plugin filters.

Doing the work of processing video in real time requires a recent Mac with a decently powerful video card, but it does not place any negative processing burden on the recipient. Some filters may even make it easier to compress the video, providing a better video quality over slower connections.

Some of the most interesting new features in Leopard's iChat may come from third party Quartz Composer compositions. All told, that makes iChat a compelling reason in itself for upgrading to Leopard.

Check out earlier installments of AppleInsider's ongoing Road to Leopard Series: Mail 3.0, Time Machine; Spaces, Dock 1.6, Finder 10.5, Dictionary 2.0, and Preview 4.0.
post #2 of 31
Another great history lesson by AppleInsider. Great job guys. It's amazing to see the road that text messaging and lately video has taken these past few years. Can't wait to start using document sharing in iChat under Leopard.
post #3 of 31
iChat is one of the only things I DON'T use on my Mac. Seems that all of my friends still use MSN and so I need to use Adium, and there's no video chat. What I looked for once was a feature like ICQ's wherein you can find a random chat partner. iChat never had that. I haven't been able to find anyone else with a Mac who wants to video chat. I expect if I could actually see it in action, it'd be pretty cool.
New MacBook Pros next Tuesday!
Reply
New MacBook Pros next Tuesday!
Reply
post #4 of 31
Sadly, it appears that iChat 4.0 is not backwards compatible with older versions when doing voice or video chats...
post #5 of 31
I also think that it is sort of confusing with its 3 different lists: Buddy list, Jabber and Bonjour. I would like to have them all in one, and I would like to have as many features as possible work with Jabber.

Also, the "get-an-account" feature is just scary. It always seems like you have to subscribe to Dot-Mac to use it. That is absolutely prohibitive.

I would really love to use iChat, but even with Mac users, the confusing interface/account setup makes it difficult to say "hey, switch on iChat and we can talk".

Hope all of this is fixed in Leopard.
post #6 of 31
Quote:
Originally Posted by machei View Post

iChat is one of the only things I DON'T use on my Mac. Seems that all of my friends still use MSN and so I need to use Adium, and there's no video chat. What I looked for once was a feature like ICQ's wherein you can find a random chat partner. iChat never had that. I haven't been able to find anyone else with a Mac who wants to video chat. I expect if I could actually see it in action, it'd be pretty cool.

Yep, I need MSN and Yahoo compatability. MSN and Yahoo users can communicate with each other. Apple needs to expand iChat's universe a bit.
post #7 of 31
I'm curious about the screen sharing. As a sysadmin it'll be nice to easily remote control a troublesome laptop out in the field.

But I wonder if the VNC traffic runs though the .Mac servers like video chat traffic which I hear can be spotty and unreliable. On the other hand, I'd expect a choppy VNC connection to be easier to live with than a choppy video chat.
post #8 of 31
Quote:
Originally Posted by MacTel View Post

Yep, I need MSN and Yahoo compatability. MSN and Yahoo users can communicate with each other. Apple needs to expand iChat's universe a bit.

Or it's time for Microsoft and Yahoo to conform to open standards. Or it's time for your friends to switch to Google.

Why does Apple always get blamed for other company's closed systems?
post #9 of 31
Quote:
Originally Posted by mrjoec123 View Post

Or it's time for Microsoft and Yahoo to conform to open standards. Or it's time for your friends to switch to Google.

Why does Apple always get blamed for other company's closed systems?

Why can't apple be more like adium? Or create a better adium.
post #10 of 31
Quote:
Originally Posted by ak1808 View Post

I also think that it is sort of confusing with its 3 different lists: Buddy list, Jabber and Bonjour. I would like to have them all in one, and I would like to have as many features as possible work with Jabber.

Also, the "get-an-account" feature is just scary. It always seems like you have to subscribe to Dot-Mac to use it. That is absolutely prohibitive.

I would really love to use iChat, but even with Mac users, the confusing interface/account setup makes it difficult to say "hey, switch on iChat and we can talk".

Hope all of this is fixed in Leopard.

Agree 100%. I'm no newbie to Apple, but iChat is still far too technical for casual use.

Proud AAPL stock owner.

 

GOA

Reply

Proud AAPL stock owner.

 

GOA

Reply
post #11 of 31
Chatting for the record.
Now you can save your audio and video chats for posterity with iChat recording. Before recording starts, iChat notifies your buddies and asks for their permission to record. When youre done chatting, iChat stores your audio chats as AAC files and video chats as MPEG-4 files so you can play them in iTunes or QuickTime. Share them with colleagues, friends, and family or sync them to your iPod and play on the go.

Nice!
post #12 of 31
Quote:
Originally Posted by yama View Post

Sadly, it appears that iChat 4.0 is not backwards compatible with older versions when doing voice or video chats...

Seriously!?
post #13 of 31
Even before the UNIX talk command was the write command which is still in OS X today.
post #14 of 31
Quote:
Originally Posted by MacTel View Post

Yep, I need MSN and Yahoo compatability. MSN and Yahoo users can communicate with each other. Apple needs to expand iChat's universe a bit.

Many Apple employees use Adium for Yahoo! and MSN compatibility.
post #15 of 31
Even with the lack of iChat's video feature, I still perfer Adium. Absolutely fully customizable. Has features that iChat should've had ages ago, and honestly, how many people in the IM world actually use the video conferencing on a daliy basis? The few that do are a vast minority.

And for you skeptical types, Adium will be getting video pretty soon. So it's really a moot argument anyway.
post #16 of 31
Quote:
Originally Posted by smashbrosfan View Post

Even with the lack of iChat's video feature, I still perfer Adium. Absolutely fully customizable. Has features that iChat should've had ages ago, and honestly, how many people in the IM world actually use the video conferencing on a daliy basis? The few that do are a vast minority.

And for you skeptical types, Adium will be getting video pretty soon. So it's really a moot argument anyway.

Agreed. In my 9 years of basically living on the internet, I have never used video chat. While the option is good to have (and I must say, it looks pretty cool), I don't think the vast majority of users will end up taking advantage of it.

I was hoping I'd be able to use iChat with Leopard, seeing as I have never even opened the app on my computer. I need MSN as well, so Adium it is. I have no serious complaints with Adium, though.
post #17 of 31
Hope that 4.0 fixes some basics as well as bring all the great new features.

For a while now I've been enjoying having the built-in iSight on my MacBook so I can video call home when I'm travelling. The problem is about 75% of the time iChat fails to get through the firewalls / NATs etc that exist on hotel hotspots. Skype however always makes it thru which means I end up using that even though I'm going mac-to-mac and would much rather do the iChat thing.
post #18 of 31
Quote:
Originally Posted by holtyboy View Post

The problem is about 75% of the time iChat fails to get through the firewalls / NATs etc that exist on hotel hotspots. Skype however always makes it thru which means I end up using that

Yup. Same reason Flash video beat Quicktime. Did it look better? No. Did it have more options? No. Did it "just work" on any sort of network? Yes.
post #19 of 31
Quote:
Originally Posted by lookingglass View Post

I'm curious about the screen sharing. As a sysadmin it'll be nice to easily remote control a troublesome laptop out in the field.

But I wonder if the VNC traffic runs though the .Mac servers like video chat traffic which I hear can be spotty and unreliable. On the other hand, I'd expect a choppy VNC connection to be easier to live with than a choppy video chat.

Maybe I miss-read it, but didn't the article state that video traffic is direct between the two computers? It doesn't go through any servers anyplace. So it's not .mac servers that are causing spotty video chats, it's things like Comcast's PowerBoost or simple internet congestion and slow DSL connections.

Finally, while it's nice to read about iChat's new features, after reading about the new Mail features yesterday, I was hoping the next AI article would tell us about a whole bunch of wonderful new functionality for iCal. Please? Pretty please? A very weak iCal is the only roadblock preventing me from ditching Entourage!
post #20 of 31
Quote:
Originally Posted by AppleInsider View Post

Screen Sharing

The other entirely new feature in iChat is screen sharing Who would have thought to build screen sharing into an instant messaging client?

Maybe I'm missing the tone of this comment, but m$ put this in windows messenger (activities, request remote assistance) long ago.

For the record, screen sharing and time machine are the 2 Leopard features I'm looking forward to most.
post #21 of 31
Quote:
Originally Posted by AppleInsider View Post

It is also interesting to note that iChat has always presented a view to the user that is a mirror image, while sending a regular image to the remote user.

I would like to be able to turn this feature off. The main reason I use iChat is to let my parents see their grandchildren running around. The preview image is pretty confusing when you are aiming a camera at someone else.
post #22 of 31
Quote:
Originally Posted by smashbrosfan View Post

Even with the lack of iChat's video feature, I still perfer Adium. Absolutely fully customizable. Has features that iChat should've had ages ago, and honestly, how many people in the IM world actually use the video conferencing on a daliy basis? The few that do are a vast minority.

And for you skeptical types, Adium will be getting video pretty soon. So it's really a moot argument anyway.

Adium gets it's backend from Pidgin. Perhaps we could all give credit where credit is due for once.

http://www.pidgin.im

At any rate, the problem you would have with Apple attempting to connect with Yahoo and MSN is that Pidgin and those that use it's libraries [e.g., Adium] have to constantly hack and rehack to get into the network when MSN and Yahoo decide to change their protocols.

XMPP being an Open Standard, along side SIP allows for none of this time being wasted.

An Open standard backend would allow even the Pidgin developers to advance their libraries more rapidly instead of spending many dev cycles refixing what was once working.

If MSN and Yahoo used XMPP and SIP Apple iChat 4.0 would automagically get those clients and their interaction.

Yahoo will either get bought by Microsoft and remain closed or will soon have to switch to XMPP in order to survive and expand.

Microsoft could give a rat's ass. They've got lots of money, users and don't need to change, for now.
post #23 of 31
Quote:
Originally Posted by ascii View Post

Yup. Same reason Flash video beat Quicktime. Did it look better? No. Did it have more options? No. Did it "just work" on any sort of network? Yes.

Flash doesn't just work. It's horrifically broken on Linux. YouTube vids have audio issues to this day with the latest Kernel and Flash 9 for Linux.

The product hasn't even been ported to 64 bit architecture.

QuickTime isn't for the cheap end user, in-line videos like what we see on the Web. Adobe recognized this would be a problem and have began addressing this with the inclusion of H.264 video.

I'd love to see the scalability comparison tests between Flash and QuickTime with uncompressed HD video streams.
post #24 of 31
Quote:
Originally Posted by cosmic68 View Post

Seriously!?

Not really. All of the fancy effects are "packaged" on the computer sending a video feed. All the other end sees is one streamed video.

This means that if one user were using iChat 4.0 (Leopard), and the other 3 (Tiger), then the iChat 4 computer would be able to send a doctored image and the iChat 3 computer would be able to see it. This cannot go the other way, for semi-obvious reasons .

Hope this clears it up.
post #25 of 31
Quote:
Originally Posted by Wiggin View Post

Maybe I miss-read it, but didn't the article state that video traffic is direct between the two computers? It doesn't go through any servers anyplace. So it's not .mac servers that are causing spotty video chats, it's things like Comcast's PowerBoost or simple internet congestion and slow DSL connections.

Right you are. I skipped by the history part of the article and was going by what friends and co-workers had told me.

Thanks!
post #26 of 31
I am a .Mac member (it's marginally useful but has gotten better since the upgrade), but the people I provide remote tech support for (ie girlfriend's mother - LOL) don't. She's not had any need for it. If screen sharing is for .Mac only I guess she now does.

That blows if that's the case.
post #27 of 31
Nowhere do I see mention of iChat 4.0 supporting video chat between two different people both behind a router that uses NAT. Currently iChat doesn't support that according to my experience and loads of messages on Apple's discussion boards. It seems like everyone is behind a router with NAT these days so iChat is essentially useless for video conferencing. Can't that be fixed with this major update?
post #28 of 31
Quote:
Originally Posted by cosmic68 View Post

Seriously!?

Well, from my experience with the beta I was unable to do audio chats between Tiger and Leopard.

I had the same problem with Panther and Tiger being incompatible.
post #29 of 31
Quote:
Originally Posted by phippster View Post

Nowhere do I see mention of iChat 4.0 supporting video chat between two different people both behind a router that uses NAT. Currently iChat doesn't support that according to my experience and loads of messages on Apple's discussion boards. It seems like everyone is behind a router with NAT these days so iChat is essentially useless for video conferencing. Can't that be fixed with this major update?

I don't use video chats very often, but when I do it is almost always between two computers which are behind different NAT routers. That's with Tiger.

The specific brand/model of NAT router at each end is important, and it might depend on the firwmare version. In my travels I've found one quite common one which doesn't work, but almost all the others I've tried did work, in some cases after doing some special configuration. Apple has a page in their knowledge base which explains the required configuration for routers which "almost work".

http://docs.info.apple.com/article.html?artnum=93208
post #30 of 31
I only just made the jump over to Adium about 3 months ago, and was glad I did at the time. I think I'll be moving back to iChat though with Leopard.
Here's a comparison of Adium to the new iChat.

Still not as much support for different protocols as Adium but the other features sell me.
post #31 of 31
Quote:
Question?

If I wanted to screen-share using iChat 4.0 with another Mac user, do they need to have Leopard installed?
Quote:
Second question?

Can I screen-share using iChat 4.0 with an P.C. user with them using AIM?
Citing unnamed sources with limited but direct knowledge of a rumoured device - Comedy Insider (Feb 2014)
Reply
Citing unnamed sources with limited but direct knowledge of a rumoured device - Comedy Insider (Feb 2014)
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Mac OS X
AppleInsider › Forums › Software › Mac OS X › Road to Mac OS X Leopard: iChat 4.0