Tag: VOIP

Making and Receiving Calls Overseas

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Image representing Google Voice as depicted in...
Image via CrunchBase

For many of us, our phone usage has migrated from voice to text and data. Few phone calls are made. So, this means, either the higher costs of making a call are not an issue, since you will not make many calls, or you need an alternate solution.

Enter…at least for Android users, GrooveIP. (Market Link) GrooveIP, in conjunction with Google Voice, lets you make and receive calls using data on your phone. You set your Google Voice account to forward to a Google Chat account.

Google Voice is currently free to use for calls to the U.S. or Canada and will remain so through 2012. Rates to landlines in other countries are reasonable at less than 10 cents. To Cell Phones abroad, it is somewhat more costly.

For us, on our recent trip, we were able to use GrooveIP and Skype to make and receive calls as if we were in the United States. Some people, aside from some tinniness on the line, had no idea we were even out of the country.

The common international alternative is Skype. Skype offers pay per minute and subscription plans. However, like Google Voice, the charges to mobile numbers in countries other than the U.S. or Canada are more expensive, and not included in their subscription plans.

To be fair, we have to remind you that neither of these are 100% alternatives for landlines or mobiles, as they do not provide 911 emergency support. But most carriers, even if you do not pay for service, allow emergency calls.

For text messages, Google Voice also offers free text messages sent and received. There are similar apps that can be used elsewhere.

It is why the future of voice for cellular phones, as has been gradually shifting for landline phones, is VoIP. But, like in many other industries, carriers will do the best to hold onto their business models instead of pivoting into new ones.

More on this to come…

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Fun with SIP, Android, and Free Dial-In Numbers

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Sipdroid 1.0.7 on a HTC Hero mobile phone
Image via Wikipedia

SIPDroid is a free VOIP client for Android that uses the standard SIP protocol. The VOIP calls will go over the data connection, be it 3G or Wi-Fi, and thus not affect your minute count.

According to their FAQ, it “uses G.711 A-law to transmit voice which needs about 80 kBit/s in each direction. This corresponds to a total of 1.2 MB per minute. A video call needs approximately twice as much. When optionally enabled for all calls Sipdroid uses GSM codec to compress to about 30 kBit/s in each direction resulting in a total of 0.5 MB per minute.”

You can use a + in a phone number in order to indicate to the Android device to use the secondary as opposed to the primary choice. You can set either the phone or SIPDroid to be the primary method of dialing. Emergency calls will always go out over the phone line.

SIPDroid prefers you set up a free or paid account at PBXes. This allows you to have all the advantages of a PBX and is already set up for connecting calls anonymously to Skype and GTalk. You can, if you use them, set a feature that will, if the data reception is bad enough, transfer the call to the phone’s cell number. You need to set up a gateway to the traditional telephone network(PSTN) from the PBX for this to work, however.

For services like dialing onto the regular phone network, you do have to pay money. But not to SIPDroid. To a VOIP provider(more on that at some point). PBXes also offers a paid account with additional features, such as a better voice codec and support for more lines.

If you don’t want to go out on the traditional telephone network, you can use the five extensions offered in the free version to talk to other people logged in(only 2 simultaneous conversations at a time, however).

Since we didn’t want to pay any money for a test, we opted to sign up for a free number with IPKall. They offer dial-in only numbers in the 206, 253, 360, and 425 area codes that will auto-forward to a SIP account you designate. We had some issues as we tried routing a call from them to PBXes and then to a phone on a wi-fi connection logged into the PBXes server. A few times it didn’t seem to connect, and when it did, there was some lag. But it was free and when it worked, it was clear. We also experimented with SIPGate, which offers a free dial-in phone number as well.

We could see a lot of potential uses for this technology. VoIp is nothing new. We’ve played with it before. But, think of the possibilities. A little private network your phone can always be connected to that will alow you to communicate airtime free? Let’s go a step further. We know of someone who lived on a college campus with good wi-fi coverage and considered having an iPod Touch and Skype or such instead of a phone.

As public wi-fi and open wi-fi becomes more available, and with fewer people calling and more people using data…we could imagine a future where people opt for a data only connection and the occasional SIP call. The possibilities are endless.

And we’ll have more on playing with SIP later.