I was in Milan when a guy told me Italian men carried three mobiles. One for work, one for the wife and kids, and one for his lover. Keeping worlds apart by giving them different phones to call.

GrandCentral says with enough control, you could keep them separate, and treat them differently, by using one number not tied to any device or service provider. And with their very slick software.

I shot this demo at GrandCentral's Fremont, California, headquarters earlier this month. It stars Craig Walker (CEO in the dark blue shirt) and Vincent Paquet (COO in the pale blue shirt). 2.5 minutes.

In the video:

1. Craig calls Vincent's GrandCentral phone number.
2. Several of Vincent's phones ring.
3. Vincent picks the desk phone and puts the call on speaker.
4. Vincent listens to Craig leaving a voice mail. (You'll hear some echo and latency because you're hearing Craig speak in the room and his voice through the speakerphone at the same time.)
5. Vincent decides to take the call.
6. Vincent presses a key code and joins Craig in the important call. If Vincent didn't take the call, Craig would have continued leaving his voice mail message.
7. Craig explains whey sometimes he wants to take calls from Mrs. Walker and sometimes he doesn't.

From a user view:

• GrandCentral restores call screening, a feature we haven't had since answering machines.
• It shows a call to one GrandCentral number rings on all of your phones.
• Call screening controls incoming calls, the better to manage your time, your privacy and your relationships.

Other notes:

• GC numbers are free.
• GC works from any phone, nothing to download.
• The magic engine behind this lets you do things like transfer a call from one phone (like my Cingular mobile running out of battery power) to another (like my charged Verizon mobile) in mid-call.
• Like Iotum, you can define rules for how to handle incoming calls in a web control panel. You tailor caller experiences and routing. You can tailor for a specific person, or have GC apply rules based on groups the caller belongs to (like family), time of day, or even challenge and response.
• GC's web interface to voicemail rocks. Everyone should take note and steal the ideas liberally.
• The magic is courtesy of their proprietary soft switch. Everything else in their business extracts value from having such a scalable, smart switch.

Yesterday's Second Life client update improved in-world instant messaging and presence. From the change log:  

• Added: a new Profile tab shows a web page of the profile owner's choice without launching a browser. (more than Skype)
• URLs in chat and IM are now clickable links. Supports http://, https://, secondlife:// (hmmm, wish skype: links were clickable in 2L)
• Log IMs and/or chat (hmmm. Are my Skype moods and presence logged?)
• Permit friends to see you online/on the map (Presence, availability and location. I'd like that, maybe let GPS or cellular tower codes update Skype via SMS/texting?)
• Conference IM multiple friends by multi-selecting in the Friends list (multichat! only one step to conference calls.)
• See who granted you permission to modify their objects in the Friends list. (this personalized presence is almost relationship brokering: who can see and do what with me when, where and in what ways.)
• Set whether you show as online in Search (Spreads your presence data, making people-search more actionable.)

2L's on a great trajectory: 

• it's matching features with the popular IM clients,
• expanding presence depth and accessibility, and 
• making it slightly easier to blend the outside world into the 2L experience.    

Are you a mobile phone software developer? I've been going to MobileMonday events for a long time, mostly in the Bay Area, always great demos, active vendor participation, tasty schmooze. Stuart John, Skype's mobile product manager, is hosting the London MoMo 11 December at Skype's offices. 2 Stephen Street, W1T 1AN (map). The theme this month is mobile community, specifically mobile social networks. Should be hot, especially with the announcement of YouTube for mobile.

Technology and Products

1. MobiGater GSM-to-Skype gateway, plugs into your PC, passes Skype calls to your mobile phone. Also lets you speed dial your Skype buddies from your mobile, ringing them on Skype. From Bulgaria to 20 countries

2. Accessing Skype APIs with Ruby. Pretty easy, if you know the Ruby programming language.

3. Moodgeist pinger for Linux. The better to let the universe know how you're feeling. Even if you're using Linux.

4. 10 Things to Know About Skype Ap2Ap Programming. Read this before you code. Adrian Cockroft.

5. Skype on Solaris. More Sun bloggers spread the word.

6. US Robotics' webcam. Is the 9640 cheaper (at $40) and smaller than the Logitech Fusion?

Advanced topics

1. Project San Dimas, an experimental eBay desktop, built on the Adobe Apollo platform using web services. Congrats to eBay's Alan Lewis.

2. Nokia: Hyperlinking Reality via Phones. "Nokia researchers are working on a system that allows physical objects to be identified and connected to the Internet through mobile-phone screens."

3. MashupU. Anyone from the Skype developer community available to teach at MIT, 15-16 January 2007?

4. Everything is Miscellaneous lecture. David Weinberger's speech mp3 (46:53, 22.5 MB) at the Scottish Learning Festival.

5. Cooperation Commons. Research project by the Institute for the Future and Howard Rheingold to study cooperation and collective action.

6. A Voluntarily Loosely Organized Organization. How does Skype support emergent management practices?

Business

1. Boom when UAE's Etisalat opens up to Skype? Skype Wi-Fi phone vendor Belkin is hoping UAE lifts Skype ban sooner than later.

2. Death of the phone company: "There will be a custom communications experience generated dynamically for every context, and it may be personalised for the individual communicators."

3. Death of Skype: Australian ISP: "Skype packets, in the world that we are heading to, will be able to be seen by all telcos and all telcos will have the capacity to prioritise or de-prioritise those packets."

4. ISP Xtra: No Skype shaping. Computerworld: Despite terms of service which allow it,

   Telecom's retail ISP Xtra says there is no rate-limiting for Voice over Internet Protocol (VoIP) applications, contrary to reports in the media and complaints in web and Usenet forums. "Applications such as Skype can be used," Xtra spokeswoman Lenska Papich says. No traffic management is applied to Skype, she adds.

5. The future is bright .. The future is 3 .. How 3's switch to flat rates for mobile data unleashes explosive growth. Great essay, by Ajit Jaokar, about taking down the "walled garden" (controlling everything in the ecosystem) in favor of an Open Garden. via John Furrier.

6. WordPress follows SixApart and SocialText into Corporate IT. SixApart needs this: one enterprise vendor is a novelty, four is a market. See also Traction and Blogtronix. Skype may benefit from enterprise adoption of other social media like blogs and wikis if they jump on the knowledge management and collaboration memes, and further integrate Skype into blogs.

7. Ten Worst Internet Acquisitions Ever. Skype is number 9. Others: Hotmail, MySimon, BlueMountain, Lycos, Netscape, GeoCities, Excite, AOL, and Broadcast.com. A hard meme to kill.

8. The Peanut Butter Manifesto. Yahoo!'s Brad Garlinghouse rocks. Messenger's executive sponsor bets his career on focusing Yahoo!

Just off the phone (21 November 2006) with Jeff Black, ceo of TalkPlus and star of the demo I posted 13 November 2006: calling from a mobile to echo123 without a Skype client anywhere in the loop.

He confirmed:

1. TalkPlus does not use SkypeIn.
2. TalkPlus does not use SkypeOut.
3. TalkPlus does not use the Skype-operated SIP gateways now.
4. TalkPlus conversations going from a mobile to a Skype user are only encrypted in the usual Skype way from TalkPlus's servers to the Skype client.

Black said he's been to Skype's London's headquarters several times, most recently about 30 days ago. He said they fully shared what TalkPlus does and how it does it to Skype's management and technical people, right down to engineering diagrams. They continue friendly discussions. He said TalkPlus filed multiple patents which predate Skype on mobiles.

Black declined comment when asked if TalkPlus was building something for Skype.

If you'd like to chat about this, join the Skype 3.0 discussion. You can view the video of the demonstration on Revver, Vox, and Google Video.

CaptainAmerica Maverick gave me a bracelet tonight. A Skype presence bracelet. It shows my Skype availability when I wear it in Second Life. And if you're in 2L with me, you can use it to Skype me (I'm "Phil Arrow").

Stephen "CaptainAmerica" Klosky is using Skype's "SkypeWeb", a web service that takes a Skype username and returns that user's public status.

Web services are the life blood of Web 2.0, published protocols that open a company's software engines to programmers. SkypeWeb is Skype's only public protocol.

Skype must do more to empower developers who want to blend Skype into the rest of cyberspace. On Skype Journal's short list:

1. Turn the Skype client messaging APIs into web services. All of them.
2. Skype user authentication as a web service.
3. Directory service for public chats, public conference calls, and open contact groups.

Offering a "Naked Skype," (Skype devzone wiki, Skype issue database) a bundle of protocols to the cloud, would let developers blend Skype with any service, including email (like Microsoft, Google, and Yahoo!).

Skype is in an earnest race. (Skype management has not acknowledged this.) The company wins who publishes the most complete, friendly web services for live communication. The measure of success: developers everywhere mashing up your communications with their social networks, mashing up your social network with their services. Skype's performance so far: not in the game.

Today, for example, I must use the unscalable Skype client on projects to: 

• Write a web page that shows a Google map of the locations of a logged-in visitor's contacts, colored by contact group, indications of when they are likely to be online.
• Build a web based feed aggregator that crawls urls mentioned in buddy profiles, showing updated web pages and blog posts.
• Run gateways between the Skype network and SIP services.

In the Skype 3.0 public chat, Julian Bond said Skype's new Skype4com ActiveX wrapper gets us partway there. I suppose it does, if all you care about is embedding a Skype widget in web pages or rich clients. So much more is needed.

Web services will unleash the power of Skype's

• communication infrastructures,
• identity infrastructures,
• social infrastructures and collective social capital, and
• commercial infrastructures.

Web services open new markets, attract new customers, reinforce your value propositions.

In Second Life, web services literally open up new worlds. Skype's rivals get it and are acting now. Where is Skype's leadership in this race?

Over the past several years I have owned Nokia phones, the last one being the (tri-band) Nokia 6310i. However, I was always finding blind spots in my coverage.  Would be half a kilometer along the drive out of my subdivision and having to apologize for phone calls cutting out over the next kilometer or so.. I was also aware of some coverage gaps along the 401 freeway connecting Toronto to Montreal and Ottawa. This continued to be my experience with the Nokia N70 and N91 which were so-called quad band phones but supporting GSM/GPRS only at 900, 1800 and 1900 MHz while having UMTS at 2100 MHz as its "fourth" band.. While obtaining some parameters last summer to allow web browser operation on the N70 and N91, I was advised by a Rogers network engineer that all new towers installed in Canada in the previous two years were 850 MHz for both capacity and coverage range reasons

On the other hand my Blackberry 8700 supports true quad band, including 850MHz, along with the EDGE enhancement on GPRS. Recently I received for evaluation the new N73 and N93 --- a quint (five) band phone (no WiFi) and a quad band phone (plus WiFi) respectively. I moved my  primary SIM chip to the Blackberry about six weeks ago and instantly found I have better coverage not only as I drive out of my subdivision but also within the Scotiabank Centre, home of the recent Voice 2.0 conference. A couple of trips along the 401 have also demonstrated significantly improved coverage as well as a tourist area where I have previously received marginal coverage. When I received the Nokia N73 last week I moved a second SIM chip into it and immediately found that gap near my home had disappeared. Phone Boy reports similar experiences trying out the N93 on Cingular and T-Mobile in the U.S.

Bottom line is that, if you want to have full coverage in North America you need a quint band "world" phone covering 850, 900, 1800 and 1900 MHz for GSM/GPRS/EDGE plus 2100 UMTS for any forthcoming UMTS deployment. As an indication of the presence of the 850MHz channel, on the N73 I see an "E" above the traditional Nokia data service symbol, as well as a much stronger signal level indicator; also the downloads are significantly faster. On the Blackberry 8700, as shown above, you see the word "edge" associated with the signal strength indicator. This recommendation applies to both all purchases of wireless GSM phones for residents of North America and those residents of Europe and Asia who may be traveling to North America and want full wireless (GSM) phone coverage.

Something to think about as we await the Skype Client for Symbian, apparently to be released next month (I assume, initially as a beta). As indicated in a previous post, fast networks are required for adequate IM and VoIP operation over wireless networks. Alec Saunders talks about some of the battery limitation potential for these phones when running a VoIP client while he attempts to configure the N93's WiFi connection. 

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I shot this demonstration on Halloween, 31 October 2006, in the offices of TalkPlus in San Mateo, California. The video is uncut, no editing at all, including about five seconds in the beginning of Jeff Black, TalkPlus CEO and founder, warming up. The call is from an unaltered mobile phone. You will see the Jeff send a text message and automatically download a Java program. That app shows his Skype address book, and he clicks on Skype's echo123 acount. For those who don't know it, echo123 is one of Skype's first test accounts. It doesn't have a SkypeIn number, so you couldn't fake access by dialing a PSTN number that forwards to echo123. TalkPlus doesn't have any access to Skype's private SIP gateways. So this demo shows that TalkPlus customers can dial any Skype user by their Skype name.

It also shows that TalkPlus has engineered a server without Skype components that talks to the Skype network as if it were a Skype client using Skype's own language. It will scale to thousands of simultaneous sessions. TalkPlus has no plans to license this technology or turn it into a product. They built it to solve their customers' need to talk with millions of Skype users.

Jeff demonstrates that Skype's protocols have been reverse engineered, and shows unmet demand for a high performance, highly scalable, "headless" or "naked" Skype server.

Last month I came across my mother's stash of "we're having a be-in party" stationary, left over from the early 1970s. Those cards were a carry over from the 1940s and 1950s when my mother grew up. The formal etiquette of mailing and invite and RSVPing became kitsch before it became corny then classic then retro. 

danah boyd: what i mean when i say "email is dead" in reference to teens.

"I'm part of the generation caught between email and IM where IM feels more natural but most of the folks just a little older than me refuse to use IM so i'm stuck dealing with email. Today's teens are stuck between IM, MySpace/Facebook, and SMS. There's another transition going on which is why there's no clean one place. IM replaced email for quite a few years but now things are in flux again. Still, no matter what, email is not regaining beloved ground."

Young people are more flexible in learning, and older people more easily adopt the tools and norms that feel familiar from their youth. There's more than one reason why computers have QWERTY keyboards; they made transferring skills from typewriters to computers feel familiar.

People also follow their cohort's lead when it comes to building social capital. Aren't most of your friends around your age? That's just the way social networks usually expand. So you're going to use the conversation and social coordination tools that dominate your social network, and your cohort.

Skype is riding this wave, of course. So it's interesting to watch Skype's founders stick a toe into another wave, social video, with The Venice Project. Are you too old to ride it?

Skype 3.0 Dev Notes including one element I advocated and requested many times over. Call Transfer is finally here in the Skype 3.0 API. That's a big deal and will grow Skype's appeal with developers who now have all sorts of call routing options. At a meeting in Estonia just over a year ago (that happened as the eBay sale was going through) a group long term adovacates put the case for it. I'm very pleased to see it has finally happened. I'll have some other comments on Skype 3.0 although I want to share them in a broader competitive context. My buddies at Skype Journal are writing plenty on the new public chat feature. See Phil and Jim.

See Alec's comment. Skype Dev Zone (lots re extras), Antoine's Dev blog:

Skype 3.0 introduces the long-awaited interface to enable call transfer. Call transfer is being phased in over two releases, and won't be exposed to users until the 3.5 release. The reason for this phased release is to ensure substantial penetration of Skype 3.0 among users, because call transfer requires that all parties are running Skype 3.0 or higher. Our goal is to enable you to start building and testing great new apps now which will be ready to blow peoples' minds away when we release 3.5 next year. No more playing catch up with the client!

Don't miss this TechCrunch post. Important to understanding the changing competitive landscape. TechCrunch UK » Blog Archive » Skype 3.0 (beta) starts the communication platform wars [with the release of Skype4Java,  Skype4COM, and XPCOM wrappers].

As mentioned elsewhere I have had significant exposure to a variety of phones that have been designed to work with Skype, either as the primary purpose of the device (Skype WiFi phones, Skype Cordless phones) or as an application within a more versatile mobile "personal assistant" platform (Windows Mobile platforms and, by year end, Symbian platforms such as the Nokia N-series). In addition I have now had the opportunity to work with a few wireless phones made by Nokia and Research in Motion (Blackberry). A few comments that could help Skype ecosystem product managers going forward:

Battery life: many of these phones have a battery life of four to six hours idle time. Probably best to license RIM's Blackberry power management -- I can get four to five days of idle time on my 8700. Any device that will have a hope of broad market acceptance should have at least two days idle time.

DTMF tones: This is a fairly basic and widely deployed feature of the Voice 1.0 phone infrastructure; yet I am constantly amazed at the cavalier approach taken to making sure "TouchTones" work with any Skype client, whether a softphone or a hardware device. Here are some of my experiences:

• Skype itself would not work reliably with DTMF tones prior to version 2.0; that issue has been resolved at this point (within the Skype client's "Dial" tab).
• The Skype WiFi phones do not support DTMF; therefore they limit the usefulness of SkypeOut when calling businesses that use IVR systems or other services, such as voice mail systems, that require a DTMF response. I have also experienced USB phones with the same issue.
• At the other extreme the RTX Dualphone and VoIPvoice Cyberphones do provide the appropriate support; the Sony Mylo aslo supports DTMF but you have to remember to put their unique keyboard in NUM mode to enter the tones.

Chat: I view Skype as having two primary features: Instant Messaging (presence and chat) and Voice. For USB phones, the IM activity remains on the host PC; however, for PC-independent devices there are issues:

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Tim Berners-Lee's Web Science Initiative is important. Tim's starting academic research to create a scientific discipline that studies human behavior and the systems that support it. Like people talking to each other over the Internet. There are already two academic conferences

Let's start a contract research team. Call me if you're interested. I have a domain and am putting together a discussion forum. We should put together a list of proposals and potential sponsors and see if we can get this off the ground.

Topics that come to mind in the last five minutes:

• How do effective people switch from talk to action?
• What are the cues for mode switching (e.g. switching from IM to voice) or blending within a conversation? Within a relationship? When and how do they work?
• How do people think about the privacy of their calls? How does this vary from culture to culture? What are the effects of those perceptions on choice of communication channels?
• Where are the tipping points for social network migration, where you and your buddies flee one network for another? Are there leading indicators? What strategies might preserve a network's critical mass?
• Can occasional random calls among workplace strangers (in a large organization) improve knowledge work and organizational effectiveness? Might this compensate for not bumping into colleagues at the corridor?
• How does IM change the relationship between supervisors and knowledge workers?
• Which behaviors improve social capital? What metrics and other cues best drive those behaviors?
• How is the psychology of persuasion altered by the social proximity of strangers?
• How long do people talk about different topics? Do those talks have common templates, narrative structures?

If you're a behavioral scientist or market researcher, please ping me. Do you sense the time is right for this area?

p.s. For fun, try this University of South Florida Skype User Satisfaction Survey.

Yesterday came out of stealth mode the TalkPlus project that has been over two years in development; underlining this project's viability was a coincident announcement of a $5.5 million financing by Menlo Ventures. Om broke the story early yesterday morning; Ken Camp, Stowe Boyd, Voxilla and Alec Saunders, amongst others, have posted their initial impressions. I spent an hour yesterday afternoon discussing TalkPlus with Jeff Black, Founder and CEO. Jack provided some of the operational details that were not covered in the press release. First an overview from the press release:

TalkPlus today announced plans to revolutionize the way people use mobile phones by offering new and innovative Voice 2.0 calling services that work with existing mobile phones globally. Under development for more than two years, TalkPlus' patent-pending technology will provide customers a wide array of new and advanced calling services previously unavailable from mobile phone carriers.

First Offering: A Second Number That Works on Your Mobile Phone

With an additional phone number from TalkPlus, mobile users can now take advantage of having two numbers on their mobile phone. This additional mobile number is fully functional and unique; it works just like a mobile number issued by a carrier. By having a separate number to both place and receive calls on the same phone, subscribers get greater convenience and flexibility, as well as the benefit of an additional layer of privacy. With a second number, TalkPlus subscribers will be able to easily manage personal and work lives, while carrying only one mobile phone.

Subscribers will also benefit from an online management center, where they can easily control the TalkPlus Number's advanced call screening, voicemail, and contact management features.

Incorporated into the "Second Number" feature set will be an independent voice mailbox, a rules based engine for call management, bidirectional calling (in and out) such that a user can, say, separate her personal and business life, while using one phone handset with one carrier account. If you want to apply these management features to your original (well publicized) mobile number, you can port that number to the TalkPlus service and have a new (probably unpublicized) number applied to your basic carrier service.

But the calling support services go beyond capturing voice mail. Here are a couple of  examples:

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Initiated when Andy invited me to participate in the Nokia blogger program back in June, I have now had the opportunity to work with several mobile platforms and, over time, made several attempts to work with programs that access Skype from the mobile phone. I've also been following the Skype perspective on mobile here, here and here where expectations are set for processor power (minimum 400 MHz on Skype for Mobile), wireless access requirements (WiFi and/or 3G) and other operational limitations on a mobile platform.

As a guideline for user simplicity, I look for an experience where I can (i) easily "ping" a contact and enter text for a chat session and (ii) simply access a (Skype) Contact or dial a number to make a voice call - an experience that has a minimal installation and learning curve for the user public; an experience that will readily gain broad market acceptance. For the record the platforms I have worked with include:

Device	IM Client	OS/Keyboard	Wireless
Dell Axim X50v	Skype for Mobile	WinMobile/ MS PocketPC Stylus	WiFi
Nokia N70*	Quick IM, SoonR, EQO	Symbian S60/T9	GPRS, 3G
Nokia N91*	EQO	Symbian S60/T9	GPRS, 3G, WiFi
Blackberry 8700*	WebMessenger	Java/ Blkbry QWERTY	GPRS/EDGE
SMC Skype WiFi	None	Linux/ T9? (no DTMF)	WiFi
Sony Mylo	Skype for Sony Mylo	Linux/ Mylo QWERTY	WiFi

* also accepts SMS messages

At the moment the best platform on which to experience Skype on a mobile device is the Sony Mylo with its embedded Skype client. It has both the standard Skype IM and Voice functionality (as well as supporting file transfer). It does not require any special setup other than to use the embedded Opera browser to log onto fee-based WiFi Hotspot services. Of course its other limitation is the availability of WiFi connectivity although Jon Arnold is already proclaiming 2007 as the Year of WiFi. The Mylo does present the most authentic and most complete Skype user experience. Skype-to-Skype calls are straight forward. Calling any PSTN number worldwide, provided you have SkypeOut access to the dialed number, is a simple matter of going to the Skype Dial menu, entering the PSTN number (with +Country Code) and clicking. Finally, as noted by both myself and others, the Mylo has superior voice quality due to its embedded VeriCall voice engine. One minor shortcoming is the lack of Outlook Contact synchronization; but this is not necessary given the overall intended Mylo experience as a personal communicator and not primarily a wireless phone.

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Walking across the river this afternoon in central London. Thinking of home, missing the wife and kids. Have been on the road too much in the last month or two, and too much travel in prospect too.

So I want to call Dr Mrs G to pass on my heart's desires etc. Problem is, the younger daughter tends to sleep at various slightly random times. Too often I've called just as the little madam was falling asleep on mama's shoulder, and ruined the whole afternoon for my wife who then has a grumpy, sleepy baby who will whine all afternoon.

So what I want to be able to do is make the phone flash gently, or solicit an outbound call. No ringing!

You can't do this on the PSTN. Sure, you could have handsets that have custom rings per caller based on the caller ID. But I want control per call over the ring at the other end, and it doesn't support that feature.

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Today Skype released Skype for Pocket PC 2.1, a release whose accompanying documentation reflects the reality of the limited resources of handheld mobile devices. A full list of new features is available here; however, key items include:

• A new multi-chat interface which supports chats with several participants.
• Skype Launcher, a small 'launcher" application that checks available memory and verifies that Skype is installed correctly. (Hopefully this will avoid the situation I previously encountered where sometimes I had to reboot a Windows Mobile device before Skype for Pocket PC would start if other programs, such as SliingBox Mobile, were running.)
• Built-in call management that detects incoming mobile calls (via your normal mobile service) during a Skype call and offers the user the choice to hang up or ignore the call. You can switch to Skype calls when in a mobile call.
• Detailed contact search including specification of country, city and language as options.

However, buried in the details are the following that reflect a more realistic approach to Mobile Skype:

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