Call Skype contacts from a mobile phone's browser with Hipsip!

Hipsip is a nice and easy mobile VoIP service which let's you call Skype and SIP contacts from a normal cell phone without a Wifi or 3G data connection. In the last weeks I could try out the service as beta tester and now they open to everyone. Hipsip does basically the same like iSkoot or Mobivox, but is easier to handle. You don't have to install a software on the mobile phone or talk to a computer voice to establish the connection. The user just opens a mobile website where he sees his Skype contacts and calls them with a click on the name. The phone then starts a GSM call to the nearest Hipsip callthrough number where a server converts it into a Skype call. In my case it goes to a landline number in Hamburg, Germany.

Screenshot from the Hipsip mobile website.

One big difference is that Hipsip has no hosted bridge from the cell phone network to Skype. Your computer must always be switched on and you have to install a small software called Hipsip Bridge which has to be running together with Skype. Otherwise the mobile website on the phone says "Please connect your Hipsip Bridge to see your Skype contacts." That is a big disadvantage to the other mobile phone Skype services like iSkoot, Mobivox and Fring. But at least it's cheaper than ideas from SkyQube or VoSky. They not only require you to leave your computer running, but also to buy an extra hardware which hands your mobile phone calls over to Skype. Again, they also let you receive Skype calls on a cell phone.

Call your Skype contacts with one click on a hyperlink.

If the Hipsip Bridge doesn't run, you can still call every SIP address of choice or even email addresses, which will be explained later. I conducted a small email interview to the developer Christian Rees. He comes from Germany himself, where he long time ago used to write about Atari ST computers for the famous c't magazine. On the phone he had told me that they are already considering a hosted solution without Hipsip Bridge, but that's not so easy.


I see that you use HTML code like <a href="tel:+4940306988028">Call sip:johndoe@ipcall.com</a> on your mobile website. What does it do? A computer's browser doesn't know what to do with it, but a cell phone starts a call.

The answer is, that the so called telephone URL, tel:, is supported on converged devices (in the sense that they support circuit and packet data) like cell phones with a web browser. When a tel: URL link with a phone number is clicked in the browser, the phone starts dialing the number. It works on all phones that are less then 4 years old. It's customary for the phone to prompt the user with the number, as a safeguard. Our users can be assured that we are only returning our local callthrough numbers.

Who is the company behind the Hipsip offer, Sipcall.com?

Sipcall.com Inc., the parent of Hipsip, is a California corporation with offices in Menlo Park. The company was founded in 2004, is privately funded and in the process of raising more capital. We are less then 10 people with backgrounds from academia, VoIP and the mobile industry. We consider ourselves an international company, that happens to be located in Silicon Valley.

Our history goes back quite a bit, starting in 1999, with the idea that email addresses will eventually turn into phone numbers. We attempted to raise funding in 2000, targetting the mobile space already back then. However, it took until 2004 for the climate to be right to start again with new ideas. In early 2005 we began developing the Hipsip Bridge for Skype. Due to our funding situation back then, it has taken until now for the relase.

What are your further plans?

We are planning to make Hipsip more useful and convenient for our users. One priority is to improve the Skype experience. We have already put emphasis on providing ISDN like voice quality for Skype calls over SIP, since Skype is so exceptional in this respect and we don't want to loose too much of that. However, there are limitations to the current phone networks. We are not so hot on vaporware, so we'll announce new features when they are available. And we are very interested to hear from users what they need.

When will it be hosted, so that my computer doesn't need to stay switched on?

See above, but it is a high priority for us.

And what about new features?

One novel feature that we provide is EmailCall. With EmailCall, a user can turn their email address into their phone number, so to speak. This is how it works: if the user has verified his mobile number and email address and opts-in to EmailCall, he can now be called by his email address:

• by dialing the email address on any SIP phone registered on Hipsip, which will ring the users SIP devices (you could say we are sippyfying the email address).


• from any mobile phone by entering the URL: hipsip.com/john.doe@aol.com (as an example). When the URL is entered, the current mobile number of the owner of the email address will be returned. This is limited to other users of Hipsip, and is strictly an opt-in feature. The user can change his current number anytime, while the much easier to remember email address can be used to look it up in real time, and dial immediately.

The idea behind this is, that we will eventually see a convergence in the addressing space just as we are seeing it with networks becoming all IP, so that a single SIP/email/URI address will be sufficient for all the different modes of communications for which we have to remember identifiers today. This day is not here yet, but we believe that it will eventually happen. Today it is already possible to dial a URI on the Nokia N-Series and E-Series phones, which works very well over WLAN and 3G. Things will only improve when pure packet networks like Wimax and LTE come online.

My take: we have to wait and see how Hipsip develops. The market for such services is already crowded. But nobody has built yet the perfect bridge from Skype to SIP. Hipsip has potential if they get the service hosted, but then they would have to cover higher server costs. The EmailCall is funny but nothing new. Jangl already does it for nearly a year.


Side note:
Respect to blogger hero Russell Shaw who unexpectedly passed away last weekend when he was on his way to cover the Emerging Technologies Conference and VON.

Native Skype for Symbian announced – not by Fring and not by Skype

One thing I heard in Barcelona was that the mobile network operator 3 is not so happy with the 3Skypephone. People are allegedly using it like crazy and 3 is required to install more and more servers from the US startup iSkoot which powers the service. As you remember the 3Skypephone doesn't do mobile VoiP but makes an GSM call from the phone to the 3-iSkoot server, which then cannels them over the fixed line internet to Skype. The data connection is only used to show the presence of the Skype buddies. These iSkoot servers must be quite expensive.

Skype on mobile phones is generally a problem, said Eric Lagier, Business Development Director for Mobile at Skype, last year. A native version exists only for Windows Mobile devices because only they have a strong enough CPU. Symbian users already gave up all hope for a native Skype on their handsets. For more than two years they are waiting for Skype to solve its battery drain and latency problems. Only a prototype was reported in February 2006. Symbian users still have to rely on 3rd party applications like Fring, iSkoot or Mobivox – most of them eat up phone minutes.

But now a real native Skype version for Symbian cell phones will come out, I have been told at the Mobile World Congress. Maybe next week already. It will enable to make Skype calls over 3G and Wifi. The most interesting fact is that this software will NOT be released by Skype and also not by the Israeli software maker Fring, which until now was the only option for a Skype data call. Stay tuned and remember that you read it here first! I am quite excited to see when this rumour will really come true. Unfortunately I cannot tell the name of the company to not ruin their surprise.

To make money from mobile VoIP, companies have to accept certain realities

Jon Arnold has updated his very interesting portal website IP Convergence TV. This time I also wrote a guest opinion, because to make money from mobile VoIP companies have to accept certain realities: "WiFi isn't everywhere and callback costs double".

I love the mobile use of VoIP but I still find it quite uncomfortable. That's what I point out. Especially annoying is how Skype, Fring, Truphone and other SIP based VoIP services get blocked by German 3G providers. Sorry, Dean Bubley from Disruptive Analysys! The reality looks much darker for VoIPo3G than you predict for the future. (But thanks for your regular Google ads "3G mobile Voice over IP. Analyst report: is it a threat to carriers? Or a future opportunity?". I better put a direct link to your website.)

Mobile VoIP over Wifi works only at home or in the office where I don't need it. So in my guest opinion I advocate intelligent cell phone software which automatically completes calls as callback, callthrough, Vo3G or VoWifi while the user doesn't even notice. I have already installed an example software on a Nokia E61.

Maybe if more and more people use these options, Dean's dream will come true. If everyone uses only mobile callthrough, triggered by intelligent software on the handset, the mobile network operators cannot charge any other items than the tariff's included minutes for local calls. Their voice legacy cell phone networks would become dumb pipes into the internet, the way we already see it with the 3Skypephone or iSkoot, Ringfree, Mobivox, Jajah Direct, Sipbroker, Tpad, Rebtel, Mobiletalk, etc. If mobile operators wanted to charge for international calls at all, they would have to embrace VoIPo3G and could at least charge for data, the way Dean predicts it.

But until this comes true, the mobile VoIP companies should attack the incumbents with better callthrough options, to take more and more cell phone calls out of the traditional networks and into IP. Read the full text for further explanations!

3Skypephone doesn't do mobile VoIP

Many commentators didn't realize that the 3Skypephone doesn't really do mobile VoIP. Even my friends at Areamobile thought at first that a 3G data flatrate would be necessary to use it. It was quite easy to get this false impression as the press release only said:

29th October 2007 – Skype, the global Internet communications company and 3, the mobile operator, have launched a new affordable handset that lets you make free Skype to Skype calls and send free Skype instant messages from your mobile phone to other Skype users no matter where they are.

The 3 Skypephone is a fully-featured 3G Internet phone with Skype built-in. In addition to Skype calls the phone makes conventional calls and can be used to access 3’s broad range of other internet services.

3 customers using the 3 Skypephone will be able to make Skype calls and send instant messages on the move with the push of a button. This is the first time an operator has offered a mass market device which is tailor-made for free calling over the internet from a mobile. Now, all of Skype’s 246 million registered can be reached for free with the 3 Skypephone. ...

No more technical details were given. But the mobile Skype calls on the 3Skypephone are basically GSM phone calls, since it's the iSkoot service which is powering them. The day after the launch iSkoot could send out their own press release:

„CAMBRIDGE, MA – October 30, 2007 – iSkoot today announced that it has been selected by Skype to help power the 3 Skypephone – the first ever mass-market Skype-enabled mobile handset. ..."

This means that Skype calls from the 3Skypephone aren't 3G VoIP calls. They are GSM calls from the phone to the 3-iSkoot server, which then cannels them over the fixed line internet to Skype. The data connection is only used to show the presence of the Skype buddies.

The 3Skypephone doesnt really do any mobile VoIP, since it uses Skype only in the fixed line part of the call. The bad voice quality, that for instance Luca critizes, is not because of unreliable 3G coverage. Possible causes are the low sound quality of the GSM codecs or transcoding issues at a gateway level. Yet still iSkoot is a nifty solution to guarantee Skype coverage nearly everywhere.

That's also why their FAQ list says:

Q: Will it work on 2G, 2.5G& 3G networks?
A: Wherever you have coverage in the UK, Skype will work. If you can make a normal voice call, you will be able to make a Skype Call.

Now it's also obvious why the technology doesn't work outside of the 3 network: It relies on free on net calls from the 3Skypephone to the 3-iSkoot server. Luca said that "if you are roaming (in Italy in some places you are under Tim coverage and not 3) Skype calls don’t work".

The 3Skypephone is no new invention but just another marketing skin for iSkoot. Take that TIME magazine if you want to elect your next "Invention Of the Year". ;)

Comprehensive VoIP overview in San Francisco Chronicle

The San Francisco Chronicle has a nice comprehensive overview about some of the most importantVoIP companies and minute stealers:

Numbers are adding up for international callers
Internet services help to cut consumers' phone bills
Thursday, June 21, 2007

They cover Jajah, Rebtel, Talkplus, Truphone, EQO Mobile, Mino Wireless and iSkoot. I would have liked to read also about Gizmo Project, Mobivox, Fring or Mobiboo. But then again the article appeared on page C - 1 of the San Francisco Chronicle, and paper isn't endless.

Mobile incumbents agree to lock down alternative VoIP providers

The air is getting even thinner for mobile VoIP companies like Truphone or Wifimobile, tells The Register. The Open Mobile Terminal Alliance, a organisation of big mobile operators like Orange, Vodafone, T-Mobile and 3 has published a guidance for network operators and handset manufacturers on provisioning and maintaining VoIP settings on new handsets. It covers only the usage of pre-installed VoIP clients on handsets, such as that used by Truphone or Wifimobile. Applications which are downloaded later, like Fring or Vyke, go free.

According to the OMTP specifications, operators are entitled to remove or lock down VoIP applications on subsidised handsets, but they must provide the ability to remove that lock when the contract period expires, just as they now will release a handset to be used on another network (SIM lock).

Bad luck for some independent mobile VoIP providers, as the incumbents agree on that the initial VoIP settings should be securely protected in the terminal, and can only be changed by the operator. When the service contract comes to an end, the customer can request the provider to unlock the Terminal’s VoIP settings and associate the pre-installed voice applications with alternative VoIP service providers.

This means in most cases: No Truphone or Wifimobile in the first two years of a contract.

Much better off are independent mobile VoIP companies which install their own applications, such as Skype, Fring, Gizmo Project, Jajah, iSkoot, Nimbuzz or Yeigo. The customer may be able to install third-party applications (Java or other Terminal OS applications) that offer VoIP calling using third-party VoIP providers. The only VoIP applications that are forced to use the operator’s settings are those that were pre-installed on the Terminal, and only during the term of the contract that the Terminal was supplied with.

The mobile phone users must be informed that VoIP has been locked or disabled. So the removal of menu items, in the way that Vodafone and Orange crippled their Nokia N95, wouldn't be allowed. The Register states that the guidance is not binding to the member companies. But as so many network operators were involved in writing, it's surely what we will see next on the entire European or world market.

Let's see if that's acceptable to regulators such as UK's Ofcom and what e. g. Truphone will do. Their new software Truphone 3.0 is so feature rich and has presence functions so that it seems quite similar to the mentioned "alternative VoIP applications" to me. If Truphone 4.0 packed it all in the software, instead of using Nokias underlying SIP functions, they would be out of trouble.

But then Truphone would suck as much battery as Fring does.


UPDATE:

I got an email from Wifimobile's John O'Prey. He says that his company is NOT affected. "This is not the case as our client is a stand alone application which can be installed. I would be most grateful if you could kindly correct this."

Sorry for that!

Sipgate is blocking Voxalot but not Fring. That's not fair!

Sipgate is one of the best quality VoIP providers I know for Germany, Austria and the UK. They give free inbound numbers and, with rare exceptions, they always work. Last friday they were down for a half hour, but this was no big problem.

Until people started to realize that Sipgate behaves strangely since then. As I tested Sipgate is blocking all the free "always connected" web based PBXes I know:Voxalot, PBXes.com and simplyConnect. That's really annoying since those websites do a great job. You can deposit there all your login data for the many SIP accounts you got from different companies. Then you need only one account, for example Voxalot's, to receive phone calls to all your different VoIP numbers on one device. Also you can define dial plans for least cost routing. Then Voxalot uses for instance provider A for phone calls to country number 1 and provider B for country number 2, always taking advantage of the cheapest connection.

Thats nice for VoIP devices which can hold only one SIP account, such as certain mobile phones or the Fring software, which recently got very important for mobile VoIP users in Great Britain. With Fring you can avoid the problem that for Orange UK and Vodaphone UK are blocking VoIP on the brand new Nokia N95 mobile phone. As an external Symbian program Frings makes SIP calls possible on these crippled N95, but holds only one SIP account. Which should be Voxalot or something similar if you have different providers. I already use more than 20 VoIP providers.

It seems that Sipgate doesn't like the described least cost routing, since their prices aren't cheap compared with other providers. Poor Sipgate! Mean Germans use them only to receive calls on Sipgate's free incoming numbers, but for outgoing calls they use free VoIP services from companies like Betamax. Nothing is cheaper than free, and even Sipgate's flatrate for Europe cannot compete with it. Maybe Sipgate did not like it that the their Voice Mail answered all calls to my dozens of different VoIP accounts that I have installed at Voxalot. Even if you called my FWD or Gizmo account the Sipgate Voice Mail kicked in. This was a nice feature since I had to deal with only one Voice Mail box for all my VoIP and fixed line calls.

It seems that Sipgate wants to work like a normal PSTN telco and tries to be as much separated from the SIP world as possible. Only if people use Sipgate for their outgoing phone calls and do not free ride their services they can sponsor the free incoming numbers. I, for instance, use Sipgate's number and Voice Mail yet for years but never paid them any money, since all my outgoing calls go for nearly free over the Betamax company Voipstunt. People from England do the same, as you can read in Voxalot's forum.

I suppose that Sipgate prefers to be their clients only VoIP provider and therefore it blocks more and more interoperability options. This started already months ago when they began to block phone calls from other VoIP providers to their SIP adresses. SIP to SIP is normally free. But now the only option is to call the phone number of a Sipgate user, which is only free within the Sipgate network or for calls from their spare peering partners.

The hottest discussion about the PBX blocking I found in Voxalot's forum. Sipgate clients are disgruntled that they cannot use the service with Voxalot anymore and give tips about alternative providers. One user even threatened the Sipgate support to cancel his account and got surprised that they did not try to hold him back, but explained in a polite way how to do it.

Originally Posted by sipgate
You can delete your account under "Settings" -> "Contract".
Best regards,
Frederik van Koningshoven

Sipgate's official explication is the following:

login details must not be given to 3rd parties. the provider mentioned above (note: voxalot is ment) attracted attention due to nonserious business practices. for our customers safety we try to remedy potential abuse through this corporation.

Other Voxalot clients got a clearer answer from the Sipgate support:

Originally Posted by sipgate
we block Voxalot and similar services, because our customer has to give them the login details.
This is a security problem.
Best regards,
Frederik van Koningshoven

Later it got more personally against Voxalot:

Originally Posted by sipgate
Unfortunately, we don't consider them as trustworthy.
This decision will not be changed in near future.
Best regards,
Frederik van Koningshoven

Poor Voxalot! What did they do? How should the company behave in this situation?

Voxalot's support worker Martin says that he "would be interested to know if this is an across the board "security rule" or if simply Voxalot was "singled out".....". An interesting question, because Fring seems to work very well with Sipgate, although Fring also requires the user to give his Sipgate login details to a 3rd party.

Why isn't Sipgate blocking Fring as well?

In fact this is a general problem: With every time more services moving into the web people have to provide every time more secret login data to 3rd parties. It reminds me of a former post that I wrote in april in Voxalot's forum, "Theoretically Voxalot could steal all our VoIP minutes".

But it's not only Voxalot. It's also PBXes.com, simplyConnect, Fring, Barablu, Nimbuzz, Talkster, Mobivox, Iskoot, Skip2PBX,... Dozens of companies are in the same situation. There has to be a more intelligent solution than just blocking Voxalot. What's missing is a secure way to share login data.

Maybe OpenID is the answer?



CORRECTION: Sipgate now at least seems to work OK with PBXes.