Future of Voice: Taking Voice beyond Ordinary Telephony

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Thursday, July 07, 2011

UK phone-hacking scandal - does this go beyond an issue about journalism?

Like everyone in the UK, I've been listening in horror to the recent reports that the News of the World's journalists have listened to the private voicemails not just of celebrities and politicians, but those of victims of crime and terrorism.

I certainly think that those responsible must face the force of both the law and public opprobrium.

But it's also made me think about the process they used. While dastardly, it doesn't sound that difficult - basically either guessing users' default voicemail PIN codes (0000 etc) or - allegedly - bribing somebody to divulge them.

This leads me to three conclusions:

  • I can't believe that the NoTW journalists were the only ones who invented and used this technique. Firstly, other journalists are probably equally implicated, as there's a lot of job mobility in that industry. But secondly, this technique has most probably also been used in other countries, and in other contexts. I've got to believe that this goes beyond news, and probably extends to industrial espionage, financial insider-dealing and assorted other forms of snooping and spying.
  • The mobile operators (and by implication their vendors/integrators) appear to have been seriously remiss about defining good practice and standards for voicemail security. This does not just extend to allowing default passwords to remain in use indefinitely, it also involves the accessibility of PINs to customer service or other staff. It seems that these PINs are much more weakly locked-down that banks' ATM codes. I also find it hard to believe that UK operators are uniquely lax about this - presumably it's an equal issue around the world. 
  • Lastly, this is another example of the "cloud" failing in its security. Just because this involved some "social engineering" does not make voicemail hacking any less scary than Sony's loss of customer details or other recent failures. Maybe there should be questions about whether the network is the right default place to store voicemails, rather than downloading them to handsets when connectivity is available.
To my mind, the UK Information Commissioner needs to do a full review into how voicemail privacy and security is run in the telecoms industry. And other countries' authorities ought to be following suit. I think the unique intensity of the UK journalism / political sphere has broken the dam on this issue, but I'll be very surprised if one newspaper is the sole culprit when the rest of the story floods out.

EDIT: this blog post (found easily on Google) discussed voicemail snooping and vulnerabilities, specifically as related to US mobile operators. Apparently many voicemail services just use Caller ID to identify when the inbound call is coming from a handset - so easily spoofed. Doesn't even use SIM-based authentication when calling from the phone itself. 

Friday, July 01, 2011

Zero-rating, sender-pays, toll-free data... the next business model for mobile broadband?

I've noticed a sudden upswing in discussion around the idea of "zero-rating" of mobile data traffic recently. This is where certain types of data - specific websites, apps, times of day, locations etc - do not count against the user's monthly data cap or prepaid quota. Clearly, zero-rating makes no sense if the user has a completely flat dataplan anyway.

Cisco has a blog post about the idea here , Andrew Bud of mBlox has been talking a good game on "sender-pays data" for some time, a company called BoxTop presented on its idea of "toll-free apps" at eComm, its cropped up in numerous discussions with operators recently - and its something I've been talking about for years in reports such as Mobile Broadband Computing (Dec 2008) and Telco 2.0 Fixed & Mobile Broadband Business Models (Mar 2010).

It's got the great advantage of being easy to understand - and there's often a zero-rate function built into existing billing systems anyway (eg to zero-rate internal "operational" data usage by the telcos for updates etc) so there isn't the headache of re-writing half the BSS/OSS stack that some other business models imply.

But in my mind though is a major question. Yes, certain data will definitely be zero-rated to the end user, but the big question is whether they will paid for by anyone else (ie an upstream party like an advertiser or app developer)? Or will the operator give away certain traffic "for free" as a marketing tool, or even as a way of (paradoxically) reducing their own costs?

Cisco's article points out advertisers as low-hanging fruit, something I wrote about myself last year. This is also a discussion I've had with companies such as Yospace in the mobile video arena, although when I asked an advertising agency at a recent mobile conference the notion of paying for bandwidth resulted in a look of bemusement.

However, there are some extra complexities to the model to consider:

- Excess usage and fraud risk / management. Would the upstream party be effectively signing a blank cheque for an unlimited amount of data use? I'm not sure how this works for 1-800 numbers, for example.
- Offload awareness. How does the model work for traffic which either does - or could - go via WiFi or femtocell access? Especially in the case where the data is backhauled through the operator core (femtos, or some new flavours of WiFi integration), I'd be mightily annoyed as the content provider if I was charged the same fee for data transmission even though the operators costs were 10x lower
- Is there any discrimination between data sent to busy cells during busy hour, vs. data sent during quiet periods?
- What happens with CDNs? Firstly, how do you account for and bill stuff routed via Akamai to a particular service provider? Secondly what happens if content comes from an operator's cache?
- Do you charge for the amount of raw data sent by the content company, or that which comes out of the compression/optimisation box in the operator's network and sent to the user?
- How do you deal with uplink traffic? And if the other party is paying, can I bankrupt the content company by emailing them a terabyte of random numbers?
- How do you sell and market this to media and content companies? How do you bill them? Do you need a completely new IT system to manage all of this?
- If the upstream company is paying, will they expect a strict SLA in terms of coverage, throughput rates - and for evidence that the telco has delivered on its obligations?
- Roaming will need to be considered - few content companies will want to pay $20,000 for delivering a movie downloaded by a user on holiday.
- Various types of problems identifying unique traffic streams when all this runs inside an HTML5 browser. Web mashups generally will cause a problem, for example if a "free" website has a YouTube video embedded on a page. Who pays for the YouTube traffic?

As a result, I expect that the short-term approach for zero-rating will be for those use cases where no money changes hands. Getting "cold hard cash" from this type of two-sided models is fraught with complexity. Instead, we'll see this type of zero-rating used mostly for promotional purposes: "1GB a month plus free zero-rated YouTube!", or for zero-rating the operator's own content and apps, especially where they are done "telco-OTT style". For example, I'd expect Orange to zero-rate traffic for its 50%-owned DailyMotion Internet video arm to some subscribers.

We may also see some zero-rating done as a way of encouraging content providers to use local CDNs, especially if they are run by the operator themselves. It would make sense for an Australian provider to tell Netflix that any content delivered from servers locally (and therefore not needing GB of data shipping across the Pacific needlessly by the operator) would get zero-rated to the end user. Obviously that would need to be set against radio and backhaul network load and would probably be part of a wider partnership deal.

There is also a promotional angle to giving away a certain amount of usage to non-data subscribers, in the hope that some will see the value and sign up for a data plan at a later date. Facebook Zero seems to fall into this camp at the moment.

Maybe some companies would stump up for the equivalent of 1-800 numbers. Maybe an airline's app, or a bank's? But in reality, the amounts are likely to be so small unless the apps are really heavy and frequently used (maybe 1MB per user per month for an airline app?) that the cost of sale might outweigh the revenues.

Overall, I expect to see zero-rating becoming more important in various guises. But I'm doubtful that it's as easy to monetise as some seem to think.
 
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