Monday, December 15, 2008

How To: Turn an iPod touch into a Phone

Step 1: Buy a 2nd Generation iPod touch
It's important that the iPod touch be 2nd generation because the 1st generation doesn't support microphone input which we'll need to make phone calls.

I see the 2nd Generation iPod touch for $229 at the Apple Store (but be sure to check for educational and corporate discounts) -or-
Buy one from

Step 2: Buy an Apple Stereo Headset
The iPod touch comes with headphones that don't contain a microphone, and the device doesn't have a built in microphone. To overcome this limitation, we'll need to buy a new set of headphones that include a microphone.

I see them for for $29.99 at the Apple Store -or-
Buy one from Amazon:

I also see some confusingly-similar 3rd party models that can be had for less than $10:

Step 3: Download Fring or truphone from the iTunes App Store
As far as I can tell, Fring and truphone are very similar applications. They provide the software that we'll use to make phone calls on our iPod touch. They're similar conceptually to making phone calls from your PC- the only difference is that we'll make phone calls from our iPod touch via WiFi. I have used Fring, I have not yet tried truphone. This is what the Fring dialer looks like:

Step 4: Sign up for a SIP provider or Skype
You may have heard of Skype before. Fring works with Skype. I hadn't heard of "SIP" before performing this exercise and honestly I haven't done the research to tell you what SIP is all about. However, because we'll want to make calls from the iPod touch to cell phones and land lines, we'll need to get an account either with SIP or one of the providers that Fring (or truphone) supports. Here is a sampling of the SIP providers that Fring supports:

If you want to do this for testing purposes, I'd recommend trying one of the SIP providers because they give you a few credits for free and it's pretty neat to hear your home or cell phone ring when you dial it. If you're looking to really use this longer term I'd sign up for Skype. In order to test Skype, you'll need to buy a $10 credit (which would last you a long long time if you actually used it) but for testing purposes it seemed like overkill.

I used "Gizmo" for my testing: (I guess Gizmo 1-4 were already taken.) If the names of these providers sound "sketchy" you're not alone. It was at this point that I considering abandoning this approach, but in the name of science (and my dedicated readers) I had to soldier on! :)

Regardless of the provider you choose to try, you'll eventually associate your Fring account with your SIP provider or Skype by going to Fring->More->Add-ons and then select Skype or SIP (and then your SIP provider) and then entering the User ID and Password associated with that 3rd party provider.

Step 5: Make Phone Calls
Once you've successfully configured your SIP provider or Skype, you should be ready to try a test call. Make sure you have a WiFi connection, connect your headset and then go to the Fring dialer. You'll know the SIP provider or Skype has been successfully configured when you see the green SIP or Skype Out buttons on the Dialer enabled (ie, they'll be green instead of black).

Dial up the number you want to reach and press the SIP button when done. If you're successful you should hear a ring! It's worth mentioning that if you just wanted to test this out you wouldn't even need a headset/microphone- you should be able to make the phone ring without the microphone and even hear your voice on the landline or cell phone (the other end just won't be able to hear you since the iPod touch does not have a microphone built in). While this may seem silly it may be useful to see if you can successfully dial the numbers you want to dial and assess the voice quality/latency associated with this approach before buying the microphone containing headset.

Random observations:
  • Although this technique is interesting, I hardly consider it practical. These days, domestic calls are virtually free anyway and cell phone minutes aren't even that expensive. The big problem as I see it is that if someone wants to call you, they first have to make sure you're up and running Fring before calling you (iPhone Apps aren't allowed to run in the background, and I rarely have my iPod touch "on"). And if someone was calling you from a landline they wouldn't have a persistent number to dial unless you signed up for Skype In which isn't free and kind of defeats the purpose of this exercise.
  • The voice quality when I dialed our home phone from my iPod touch through Gizmo was unacceptably poor. When I tried calling a Skype user on a PC, it was noticably better. Fring to Fring calls iPod touch to iPod touch were "OK" but it was hard to tell given that the other user I tested with didn't have a microphone.
  • I can only see this set up worth pursuing in two scenarios: (1) Internationally, where it's really expensive per minute to dial from a cell phone or landline -and- WiFi is available and affordable. (2) Where you have a cell phone that's lost service because you're inside a building and you really need to make a phone call. Note that these techniques would work equally well on an iPhone as on the iPod touch- the advantage there being that you wouldn't use minutes -and- you can call over WiFi.
  • The thing I'd really like to see here is that the iPhone would seamlessly transition to making/receiving calls over WiFi when cell coverage is unavailable. I'm hesitant to switch to an iPhone because AT&T service isn't very good at our house and I'd hate to have to constantly tell callers "could you try me on my landline"? I'm not sure whether it is technically possible for Apple to pull this feat off, but I think it could be a selling point for the iPhone if they were somehow able to.

Like I said, I hardly consider this approach practical. In my tests, the voice quality just wasn't good enough and the hassle associated with this just isn't worth it for me. The only time I could see this being worth considering is if I had a trip overseas and wanted to call home and talk for an extended period. However, if the voice quality internationally were as poor as what I've experienced calling our home line from my iPod touch, I don't think the conversation would be enjoyable (hence, what's the point?).

That said, I do see this capability as being another example of the power of the App Store model that Apple has put forward, and an instance where the iPhone/iPod touch is more of a mobile computing device than a simple mp3 player.

Did you like this entry? If so, you might also reading about Three Things You Can do on an iPod touch (that you can't do on your computer)

Question of the Day: What do you think of this? Are you considering purchasing an iPod touch or an iPhone? Do you have one already and can see where this capability would be useful?

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