Tip o’ the Week 490 – Bluejacking LinkedIn

clip_image002[4]There was a time when nefarious sorts could fire up their mobile in a busy place and send unsolicited messages to any hapless punter not smart enough to switch their own phone to not receive unsolicited Bluetooth connections – a process known as Bluejacking.

Mostly harmless, it was a way of making people take their own phones out of their pocket and look around in a puzzled fashion over what was happening – useful entertainment in a boring theatre or a packed train carriage. Mobile platforms stopped leaving these things on by default – booo – but it’s probably for the best.

Still, the more modern way of dishing out business cards – LinkedIn – has another way to harness the same basic technology for good. ToW #461 discussed the QR-code method of sharing a LinkedIn profile with someone, and it’s a great way of doing it 1:1, by pointing a camera at someone else’s phone to make the connection with them.

clip_image004[4]But there is another way that is perhaps more useful when dealing with several people at once – a networking meeting with people you don’t know, or a business gathering where you might be communing with several new people at one time. Or a party. If you’re at a pretty sad party.

clip_image006[4]clip_image008[4]If you start the LinkedIn app on your phone and tap the My Network icon on the bottom toolbar, you’ll see the Find nearby option, which allows you to see anyone else in the vicinity who has similarly switched on the same feature. On enabling, you may need to turn on Bluetooth and then separately allow the sharing of data, and of the LinkedIn app to use it.

clip_image010[4]You’ll see a list of who’s in the vicinity and with a single tap, can connect with them on LinkedIn. Make sure you remember to turn it off again, in case you inadvertently show up on some unknown ne’er-do-well’s phone, as the Nearby functionality can continue even when you leave that page.

But it you’re careful, it’s a great way to mutually share contacts with a group of people.  See more here.

Tip o’ the Week #253 – Using Cortana in the Car

clip_image001There are many cool things that Cortana can do, which make using Windows Phone 8.1 a pleasure. Try asking the following, if you have Cortana enabled:

  • “Find the best nearby restaurants”, then
  • “Which are open now?” …
  • “Traffic to the 3rd one” …
  • “Drive there”

After each command, following commands will work in context with the results from the previous one – though it might take a bit of practice to figure out what you can say, and what is going to reliably be interpreted by Cortana. If you say something she doesn’t understand (maybe she’ll start playing some music or call some random number instead, mishearing “Drive” for “Play” or “Call”) then you’ll lose context and will need to start from the beginning.

One smart function, though, is when you want to use Cortana in your car. The specific UI will vary greatly depending on what car you have, but the important thing is that it may possible to use the car’s own functionality to get at Cortana’s smarts (which will be better than whatever is installed in the car, almost certainly).

Assuming you have Bluetooth handsfree functionality installed, you may have the option of pressing a steering-wheel button to interact with the phone – generally relying on the car systems to recognise names as you read them out, and searching a list of contacts either manually-entered or possibly sync’ed from your phone. Be careful not to faff about with your handset whilst driving – you may be breaking the law. Even in (some) parts of the US.

clip_image003If your car has the ability to see your phone’s directory or phone book, then you should see a contact show up in the list (when viewed in the car – it doesn’t actually appear as a contact on the phone itself), called Cortana.

You may be able to set favourites on your car so that when you press a button, it will dial a particular contact or number – or maybe your car’s Bluetooth setup has enough capability that it will be able to recognise a “call Cortana” voice command.

Even if the car has a less advanced system, it’s generally possible to have a short dial or some other kind of saved contact that’s manually added. If you create a contact in your car’s directory with the number 555-555-9876 and try to call it using the car’s UI, then you’ll see Cortana spring to life – in other words, the phone won’t actually dial that number, it will activate Cortana and will use the Bluetooth functionality in the car to be the mic and speakers for the phone. Don’t worry that it looks like a US phone number – it works on international handsets too.

If you type that number into your phone, then it will attempt to dial – but if you call that number using the car (either by adding a contact or just by entering the number) then you’ll see if the car wins Cortana’s favours or not

Tip o’ the Week #220 – Wireless networking, 15 years on


It’s amazing how quickly technology goes from an expensive frippery to a cost-insignificant near-essential. It’s not so many years ago that WiFi and Bluetooth first arrived (remember the Ericsson T29 or T68, the latter of which not only had a COLOUR screen but came with Bluetooth support – all you’d need is a £100 “Socket” Compact Flash card†, and your iPAQ could be GPRS enabled).

Bluetooth went from a travelling salesman’s “look at me” blinking earpiece, to wirelessly enabling things that don’t really need to be wirelessly enabled (and the seller’s earpiece is now pretty-much the territory only of airport taxi drivers). WiFi was developing in parallel.

clip_image003Here’s a photo from 13 years ago, where the serving UK Prime Minister was entertained by a demo in the Microsoft TVP atrium, of a mobile app (equipped with smoke & mirrors) which used a WiFi network – but it pre-dated the Microsoft rollout of WiFi, necessitating about £500 worth of kit just to allow the hand-held device to talk to the network.

Nowadays, we’d rock up at an airport and be disappointed not only if there wasn’t WiFi, but there wasn’t some kind of freely available service. Buses have free WiFi. Often you can price-check online as you’re walking around the department store. We expect WiFi to connect our phones without racking up 4G charges. Time marches on.

It was 1999 (with the adoption of the 802.11b standard) before wireless networks (becoming known as WiFi or Wi-Fi depending on your degree of pedantry) started reliably working with kit between different vendors. This opened the door to successful adoption and eventual embedding in all sorts of devices. Bluetooth also developed apace, and has now carved out a niche (especially with Bluetooth Low Energy, or BLE) for data comms over relatively short-range and comparatively low-power (against WiFi’s longer range, with higher power drain).

clip_image005Although both standards offered options for peer-peer communications and operating in an “infrastructure” mode where there was an established network to connect to, Bluetooth only ever took off as a means of linking devices directly, and the vast majority of WiFi is deployed as a network of base stations.

Windows Phone 8 GDR3 and Windows 8.1

One neat function that was included in the latest major update to Windows Phone 8 (released under the “Lumia Black” moniker for Nokia handsets), turns your phone into a WiFi hotspot that can be remotely controlled by Windows 8.1. If you go into settings -> internet sharing on the phone, and set up internet sharing for the first time, it’ll give you a broadcast name and a numeric password.

You can now connect from some other device to the phone over WiFi, and use its data connection to get on the internet. Once you’ve set the connection up for the first time, with your laptop or tablet is running Windows 8.1, you can establish the connection any time without even needing to get your phone of the pocket – just swipe from the right, look under the network settings and tap to connect.


† Whilst on the topic of old networking kit, here are some old Bluetooth bits that I found in my Man Drawer. The PCMCIA wireless cards have all gone the way of the Dodo – these ones evaded the net on the basis of their size and the amount of money they costs to procure in the first place.

How can you throw something away that cost hundreds of pounds in its day and is now worthless for any reason other than as a curio?

Might as well keep them and maybe someday they’ll be worth something as a museum piece…