Welcome back to Ask TUAW, our weekly troubleshooting Q&A column. This week we've got questions about VOIP apps on the iPhone, auto-tagging music, Boot Camp, replacing a hard drive and more.

As always, your suggestions and questions are welcome. Leave your questions for next week in the comments section at the end of this post. When asking a question, please include which machine you're using and what version of Mac OS X is installed on it (we'll assume you're running Snow Leopard on an Intel Mac if you don't specify). And now, on to the questions.

Business Insider is reporting that AT&T has given Apple the go-ahead to enable Voice over IP (VoIP) apps such as Skype on its 3G network. In the past, VoIP apps required a Wi-Fi connection.

The announcement was made in advance of the annual conference sponsored by CTIA - The Wireless Association. AT&T Mobility CEO Ralph de la Vega is scheduled to give a keynote at the conference tomororw and could use the event to further elaborate on their intentions.

The announcement is most likely a response to recent events at the Federal Communications Commission (FCC), which is proposing new rules that would prohibit carriers from blocking apps on their networks.

A public announcement by AT&T stating that they will allow apps such as Skype on their network would remove any doubt that it's the company that is doing the blocking, and put the spotlight firmly on Apple to explain why they're not approving VoIP apps. As noted yesterday, VoIP provider Vonage has made its app available in the App Store, although ratings after the first day probably make them wish they hadn't...

It should be noted that the announcement will likely have no bearing on the fate of Google Voice, which was rejected by Apple on the grounds that it duplicates functionality already found in the iPhone. The Google Voice app allows users to control their Google Voice account, send SMS messages and check voicemails, but does not provide any VoIP functionality.

Vonage [iTunes link] today posted an app enabling cheap international calls using either Wi-Fi or the cellular network. Vonage Mobile for iPhone is free, but requires you set up an account with Vonage, even if you already have an account for your home or work phones.

Users can use their existing mobile numbers, contacts and device interface to place the calls. Just use your existing contact list and click and dial – no extra steps. Users also receive real-time balance updates to ensure they always make the calls they want. The app utilizes your existing cell phone number so people recognize who is calling.

The app supports:

• Lower international rates than traditional carriers
• Lets you use your existing contact list without taking extra steps
• Uses your existing cell phone number

It's a bit surprising Apple and AT&T let this app through. It seems like it certainly 'duplicates existing iPhone features', but it may also be that Apple and AT&T are being careful while under the watchful eye of the FCC.

There have been a lot of negative comments on this app from people who are already Vonage customers and were looking for integration of this app into their existing accounts, but there is no cross-over between the two.

Reflecting on my last post -- and how unbelievable the AT&T statement was that they have nothing to do with what gets approved in Apple's App Store -- convinced me I needed to refresh my dimming memory banks.

Remember all the flames about whether Skype would come out for the iPhone last year? Then, at the 2008 conference last year, none other than Steve Jobs told the assembled multitudes that he would love to see a VoIP application for the iPhone as long as it used Wi-Fi and not the cellular data network. That, of course, was designed to protect AT&T, and while AT&T might not have insisted, Jobs knew he couldn't allow a full version of Skype or any other similar voice client.

That caused the internet advocacy group Free Press to complain to the FCC, but nothing really happened. Now there is a new president, with a different view of net neutrality than that held by the Bush Administration. There's a new FCC Commissioner as well, Julius Genachowski.

I would expect this whole area of restricting freedom of access to be a big issue in the coming weeks and months. We may not hear what answers Google, AT&T and Apple give to the FCC queries right away, but they'll likely leak out eventually.

We may yet see some changes in some of these restrictive policies and more competition among cell phone providers and carriers. That benefits just about everyone. Perhaps the fight over crippled or banned apps like Skype, Google Voice and the SlingPlayer for iPhone has ignited a debate that could finally change things.

The good folks at Skype have just gone gold with the 2.8 update (link) (previously in beta) of the popular VOIP client for Mac OS X. As TUAW previously noted in the beta release of 2.8, the update brings with it support for screen sharing and Skype Access, the company's pay-as-you-go Wi-Fi service.

With screen sharing support, you now have the ability to share presentations, documents, and slideshows with that Windows friend of yours that you would otherwise ignore -- you know, that guy whose PC tower is so well-decorated with neon lights that you'd think you went to a rave when you walked into his room. Yes, that guy.

A host of other features are also included in the update. Improved chat management provides the ability to sort and prioritize chats, a quicker way to add people to chats, and mood messages for chats. Larger profile pictures (now up to 256x256 resolution) are now supported; and if you want to hide your profile pics from incoming contact requests, this is now supported as well. And for those of you that can't keep track of who you're talking to, or what you last talked to that person about, you are now given the luxury of a notes field for each contact.

Skype 2.8 is available for download (link) at the Skype website, or via the "Check for updates" option within the Skype app.

As the midnight line rolled across the globe last night, international iTunes users picked up the Skype app with glee and enthusiasm. While users in Germany are fuming at reports that T-Mobile plans to block use of Skype via its WiFi hotspots, everyone else seems quite happy so far. We're already hearing about Bluetooth speakerphones or plug-in mics that should work well with the service.

More updates: users of jailbroken phones may want to check Cydia for an update to the mobile substrate component that stops Skype from crashing. Canadian users are, for the moment, out of luck due to a patent concern.

If you've got Skype fired up on your iPhone, let us know how it's going for you and what the advantages/drawbacks of VoIP on your iPhone or iPod touch are so far. Leave a comment below, or send us a Skype IM at 'TUAW_on_Skype' with your thoughts.

Update: Our pals at Engadget are reporting that Skype for the iPhone has just hit Japan!

We heard it was on the way, but now CNET says it's official: the Skype application for iPhone and iPod touch should be available tomorrow on the App Store. As expected, the voice-over-IP app will require a WiFi connection to place and receive calls; it will also handle conference calling as a participant, not an initiator, and the first version leaves out SMS, call waiting and an integrated voicemail tool. Skype text chat, unlike voice traffic, will work fine over an EDGE or 3G connection.

Imperfect? Yes, and there are other apps -- Fring and Nimbuzz, for example -- that can talk to the Skype voice network... but the big blue S is providing the stamp of approval for VoIP on the iPhone, and you can bet that Skype's app will shoot to the top of the App Store charts as soon as it's released.

Thanks to everyone who sent this in.

VOIP for iPhone is the dream of many a user, and Om Malik suggests that it might be days away. Citing a "...very reliable source," Om says that Skype is ready to launch their iPhone app, perhaps at next week's CTIA Wireless event.

That's whole lot of "suggests" and "might" and "perhaps," is it not? Frankly, I don't see why Apple or AT&T would be keen on Skype for the iPhone or iPod touch. Of course, here are other VOIP options available, like fring and iCall (among others), so what do I know? It's an interesting rumor, but for now, that's all.

Vonage, the international VoIP provider, has just released its Vonage Companion software for OS X. Vonage Companion is available to users who subscribe the the Vonage Pro plan and it basically allows users to use their laptops or desktops to make or receive phone calls. Think of it as Skype but for your Vonage account.

You can use Vonage Companion to record calls, set-up conference calls (or separate conference calls into separate phone calls), selective call block, call transfers and more.

I don't have a Vonage Pro account, so I wasn't able to check out the features firsthand, but flipping through the manual (PDF link) it looks pretty powerful. The biggest benefit to a service like this is the ability to make and receive calls from the road, using your Vonage number and account credentials.

Vonage Companion is free for Vonage Pro customers (existing Vonage users will need to upgrade to a Vonage Pro account) and it works with OS X 10.4.11 Tiger and OS X 10.5 Leopard, though Vonage strongly recommends having the latest security updates and latest OS updates installed. You can download Vonage Companion here (direct .DMG link)

Good news for travelers or anyone who is frequently on the go: Boingo has just released Boingo Mobile [iTunes link] for the iPhone and iPod touch. Boingo Mobile is actually a pretty handy service, especially for the frequent traveler. For $7.95 a month (5.95 EUR, 3.95 GBP), you get unlimited data and VOiP access to all Boingo Mobile hotspot locations throughout the world. This includes practically every major airport, US Starbucks and McDonalds locations and an insane number of hotels.

I use the Boingo Unlimited service when working away from home (it's about the same price as adding HotSpot access to my cell phone and I get access to more networks) and Boingo Mobile is a great compliment to the service.

I played with Boingo Mobile at Starbucks today and what really stood out was the login process. You only have to authenticate once per Wi-Fi provider. So if you are at Starbucks, which is provided by AT&T, you select your hotspot from within the iPhone or iPod touch, login with Boingo Mobile and you're online.

If you go to another Starbucks or another AT&T provided hotspot, you will be automatically connected and authenticated. Although there are many thousands of hotspots, most are powered by a handful of providers -- authenticating once makes the login process that much more seamless.

For iPhone owners who want to use VOiP but don't want to run the risk of inciting AT&T's contract police, consider trying Boingo Mobile's 30-day free trial. Boingo Mobile is a free app and is available from the App Store [link]; Boingo Mobile accounts are $7.95 a month US and are separate from Boingo Unlimited plans.

While most VoIP devices are made for Skype, IPEVO has made a version of its TR-10 conference phone with the Mac in mind: It can be used with both iChat and GarageBand.

For iChat conversations, the device can be used either as a speakerphone or traditional handset with full-duplex audio and echo cancellation. The buttons on the front of the device can be programmed to start iChat or record calls.

For GarageBand, the TR-10 can be used as an audio input device to record podcasts. The device only works with a Mac.

IPEVO sells the TR-10 for $79.90 in its online store.

[Via Engadget.]

We have all been waiting on an iPhone VoIP (Voice over Internet Protocol) solution, since we heard that Apple would allow VoIP application access while connected to WiFi. Fring has finally made our dream a reality -- and it's a reality that's available today!

Fring is a new, free iPhone application that integrates with Fring's network and allows access to the following IM/presence services:

• Fring
• Skype
• AIM
• Yahoo
• Twitter
• ICQ
• MSN

In addition to simply chatting with buddies from the above services, you can place VoIP calls to other fring users, or using Skype/SkypeOut or another SIP provider (Gizmo, Vonage, etc.). We'll take a more in-depth look/review this weekend -- so be sure to stay tuned to TUAW. In a quick test, I was able to call Skype users from my iPhone and carry on a (slightly echo-y, but perfectly audible) conversation.

You can download this application today by visiting the iTunes App Store. The application weighs in at 3.0 MB. You can also get more information about this service and the application on the Fring website.

Thanks to everyone who sent this in!

Thilo Salmon, CEO of sipgate, Inc., wrote in to say that T-Mobile Germany has asked his company to cease and desist offering the company's flagship VoIP software.

In the letter from its lawyers, T-Mobile claims that sipgate is making the jailbreak process appear more attractive, which could lead customers to breaching their contracts.

According to Salmon, T-Mobile disallows jailbreaking, running VoIP, instant messaging, and VPN applications as part of its subscriber contract. Salmon notes, however, that sipgate only works via WiFi (and not GPRS or EDGE), and therefore does not run on T-Mobile's network. He says, "for the time being our users are safe."

sipgate doubts the legal veracity of the argument, and said it does not plan to comply with the order. Salmon said "we may need to fight this all the way through the courts." He also suggests that it's largely a government policy issue for Germany, and wants to lobby for a net-neutral environment for telecom carriers.

Tempest in a teacup? Apparently, it's a big deal in Germany. What, if any, "chilling effect" this will have on other VoIP software providers remains to be seen.

We covered a number of iPhone VOIP applications, but iCall looks particularly impressive. As you can see in the above video, it allows you to seamlessly transfer a regular inbound cell phone calls to VOIP. This means you can save your minutes any time your iPhone is connected via wifi. As of right now calls are free in the US and Canada, and there is an iCall Pro account that lets you make international calls for a fee. Unfortunately, the iCall application is only available for Windows at the moment but they're promising a Mac version soon. Nonetheless, it's clearly the iPhone application that's most exciting and the company is apparently part of the iPhone Developer Program.

Thanks, Ryan!

San Francisco-based sipgate, Inc. is offering software for your jailbroken iPhone to make and receive VoIP calls using any SIP-compatible VoIP service. The service appears to be similar to those offered by Fring and PhoneGnome.

The service is in early beta stage, with several caveats mentioned on its FAQ page. You won't be alerted to incoming calls unless the software is running, which drains the battery with some quickness. The company also promises revisions for the upcoming App Store. It's unclear if the setup suffers the same kind of delay and echo problems that other VoIP solutions do.

Plus, it may eat your firstborn. Seriously. It says it right there.

If you're interested in testing out the product, sipgate is also throwing in 111 free minutes if you sign up for their own VoIP service.

The software is free, and requires iPhone firmware 1.1.4.

Thanks, Martin!