Kannel: Open-Source WAP and SMS Gateway

https://www.kannel.org/overview.shtml

by thunderbong • 2 years ago

103 50 2 years ago

kannel.org

EVa5I7bHFq9mnYK• 2 years ago

This is an SMS spamming tool, right?

argulane3• 2 years ago

We use it to send OTP messages through few telco providers who don't have HTTP API.

adriaanmol• 2 years ago

Easier to use https://www.bird.com/developer/sms-api ;-)

argulane3• 2 years ago

It's cool to see that they are still going. To any one looking to using this for SMPP connections should skip the releases and build it straight from SVN trunk to get the latest bugfixes.

userbinator• 2 years ago

but a reasonably fast PC workstation (400 MHz Pentium II, 128 MB RAM) should serve several concurrent users without problems.

Back when software was actually efficient... and of course when WAP meant something entirely different!

pavlov3• 2 years ago

“HTTP is also too inefficient for wireless use. By using a semantically equivalent, but binary and compressed format it is possible to reduce the protocol overhead to a few bytes per request, instead of up to hundreds of bytes.”

Around the turn of the millennium, there were numerous international committees and hundreds of millions of dollars spent by companies on this idea that we simply can’t use the existing internet on mobile phones, so there needs to be something else.

Of course for the companies it was mostly a plot to capture the web, which was uncomfortably open and uncontrolled. The mobile operators were used to charging 20 cents for sending a 140-character message and 1 euro for delivering a monophonic ringtone. They wanted to be the gatekeepers and content curators of the mobile web, taking a cut on every bit of content that flows to devices. (I remember vision PowerPoints where operators imagined that one day when video can be watched on mobile phones, they’d be making more money from each watch than the studios.)

“We must save 200 bytes on HTTP headers or the network will melt!” was just a convenient excuse to build a stack they could own end-to-end.

diggan3• 2 years ago

I don't know if you tried to use the web via 3G or even GPRS, but I remember I did, and it was terribly slow. Opera Mini/Mobile ran some sort of proxy service that made things faster (not sure how or what that was, I was too young to understand anything) and helped a little bit, but the best thing you could come across was dedicated WAP websites that basically were "website lite" versions some websites ran concurrently with their real websites.

And even so, loading a 0.1MB WAP website still took time. The pipes were really slow back then, and the devices not being like the pocket computers we have today.

The mobile operators were used to charging 20 cents for sending a 140-character message.

In Sweden when I was young, it was pretty common for us to have monthly plans with unlimited text messages included (but not surfing, no one did that on the phone anyways). Even with that, WAP seemed to have served some sort of purpose, at least for me personally.

usr11065• 2 years ago

Opera Mini/Mobile ran some sort of proxy service that made things faster (not sure how or what that was, I was too young to understand anything)

That is still running. The SymbianOS version of the Opera Mini browser still works.

From my Web server log:

    88.88.88.88 [20/Dec/2024:18:55:10 "GET /redacted HTTP/1.1" 200 75 r:- "Opera/9.80 (Series 60; Opera Mini/7.1.32444/191.361; U; de) Presto/2.12.423 Version/12.16"

pavlov3• 2 years ago

Both are true: WAP was technically a well-intentioned (if poorly designed) solution to a real problem, while also being a cynical power grab by the operators.

The problem turned out to be more short-lived than anyone imagined in 1999, and fortunately the power grab failed too. Steve Jobs hammered the definitive last nails onto that coffin. Mobile operators became the dumb pipes that was always their worst nightmare.

rollcat• 2 years ago

Opera Mini/Mobile ran some sort of proxy service that made things faster [...]

In 2017ish, I've overheard from a friend who used to work for Opera, that back in their time they were using Presto (their in-house engine) on the backend to pre-render/optimise/compress pages. Think smart VPN/proxy.

Also, heck yes, Opera on "dumb" phones was an amazing experience - compared to the built-in contemporary browsers.

mxuribe• 2 years ago

I remember those days, and agreed things were slow...but i feel like at least the thought that went into trying to ensure code and assets implemented for mobile were better simply because devs at least tried to optimize things to improve/have the best experience possible (even with the slower pipes). Nowadays, i feel many devs fill as much javascript and framework libraries for the web experience, that we have so much bloat...and when some of these devs or their leaders are asked "what about the mobile experience for our mobile visitors/customers, etc.?"...they often respond with something along the lines as "Don't worry, we'll just send'em to the mobile app, which is managed by the separate mobile dev team....etc.". Or, maybe i',m too cynical these days? :-)

fulafel• 2 years ago

Yep, it was obsoleted before it could catch one. Sadly not so with IoT devices. Today's IoT device hardware would run HTTPS, JSON etc just fine, but there are all kinds of constrained weird protocols used, and lots of companies there have incentives to perpetuate it.

lxgr9• 2 years ago

I wouldn't underestimate how verbose JSON over HTTPS is, compared to a binary protocol that maybe only sends a single symmetrically encrypted UDP packet per sensor status report.

Some IoT devices run on CR2032 Lithium cells, and even a single order of magnitude still matters there.

Network data usage can be a consideration too. Some IoT devices use satellites as a backhaul; you definitely don't want to (and in fact can't) run HTTP over something like Iridium SBD, for example.

cherryteastain2• 2 years ago

We're better off than that scenario, but not much better. Apple and Google ended up owning the phone operating systems so only the things that they deem acceptable are what the vast majority of users are allowed to use.

pavlov3• 2 years ago

Do Apple and Google stop you from opening a web browser and navigating to any web site?

Because that was the trillion-dollar vision for mobile operator owned WAP portals around 1999. They would completely control access to online services on mobile devices. That was how they planned to get a cut on everything you view on a phone.

usr11065• 2 years ago

Of course for the companies it was mostly a plot to capture the web, which was uncomfortably open and uncontrolled. The mobile operators were used to charging 20 cents for sending a 140-character message and 1 euro for delivering a monophonic ringtone. They wanted to be the gatekeepers and content curators of the mobile web,

So how has this changed? Nowadays Google and and Meta are the gatekeepers. The business model has changed from billing the end customer to personal data prostitution. You sell us your private life and we give you "free" services to get even more personal data. Disregarding the ethical aspects: If you look at Google's profits and the money they can happily spend on paying fines to regulators, it's obvious that we have no functioning market economy.

In the old days one could still change between ~3 competing operators and one was typically competing on price. Nowadays you don't really have that option. Maybe every n years when you have to biy a new phone you can choose between Android and Apple, but it's a limited choice.

sabbaticaldev• 2 years ago

the fact that other companies succeeded doesn’t have much to do with the many that failed with terrible assumptions

orev• 2 years ago

No, this is a completely different scenario. There’s a huge difference between the companies who provide the pipes having full control over everything (the way it was back then) and what we have today which is that some companies have become defacto standard platform providers. It’s the difference between having to pay a toll every time you leave your driveway vs. paying for things at whatever store you decided to drive to.

Google and Apple happen to have devices that most people use, but if you want to you can buy USB adapters to use on a laptop, or some laptops have built-in mobile data.

I think people making this type of comment like “there’s no difference now” just were not around back then and have really no context on just how completely locked down the wireless carriers had things back then.

cyberax• 2 years ago

Around the turn of the millennium, there were numerous international committees and hundreds of millions of dollars spent by companies on this idea that we simply can’t use the existing internet on mobile phones, so there needs to be something else.

This was not unreasonable. GPRS started to roll out around 2002. And it was quite spotty initially, to say the least. The phone hardware was also quite underpowered, good old Nokia 3310 had a whopping 2kB of RAM accessible to the software.

I got my first mobile phone in 2000 that had WAP-over-SMS, and it was quite useful. I could check the weather forecast, and my university had a nice WAP site with important notifications (scheduling changes, exam reminders, etc.)

miki123211• 2 years ago

And it's worth remembering that the company that changed it all was Apple.

They were the first[1] to ship a "real" web browser on a phone, and they were large enough to bully carriers into submissions and force them to provide them a raw data pipe, no "special" services.

When people at RIM (AKA Blackberry) saw this, they were outraged, as no carrier would ever let them get away with that. Their solution had to be far more integrated with carrier infrastructure, it was very far from Apple's "just let us do TCP/IP and we will handle the rest" approach.

[1] At least for "real" consumers, there was probably a way to get one on some phone somewhere before that, but it was obscure enough that nobody really did.

[2] source: Losing the Signal: The Untold Story Behind the Extraordinary Rise and Spectacular Fall of BlackBerry: 9781250096067: McNish, Jacquie, Silcoff, Sean

2-3-7-43-1807• 2 years ago

this should have a (2018) in the title.

anyway - is wap still an interesting or relevant technology? "relevant" from the perspective of someone with a hacker mindset. from a modern perspective it is probably just useless.

Kwpolska• 2 years ago

It is not interesting or relevant in any way, I doubt any mobile network still supports WAP.

lxgr9• 2 years ago

Given that this is a WAP gateway, you don't need your mobile network to support WAP; a TCP connection to the gateway should be enough (either via IP, or via dialup, if you can still find a network that supports circuit-switched data and a low-jitter VoIP or circuit-switched landline that can terminate a data call).

It is not interesting or relevant in any way

In a technological-historical way it definitely is. I find it pretty interesting to see how things used to be done, and try to see which design decisions were just following the hype, and which actually were ingenious solutions to real constraints of the time.

ForHackernews• 2 years ago

Wow, this is a blast from the past.

Many years ago, before most phones had mobile internet, I was running a web-to-WAP reverse proxy using https://web.archive.org/web/20080209153558/www.hottproxy.org... to get mobile web access on my LG VX 5400 flip phone.

You could go into the secret admin menu, reconfigure the WAP gateway away from the carrier's captive portal to your own proxy and voila! Unlimited free access to the real web! (at 3G speeds)

lxgr9• 2 years ago

Even though it never really took off (at least in Europe), I find SMS as a bearer medium for the WAP 1.0 stack fascinating.

One of my first PDAs could do something similar for sharing files as a series of concatenated binary SMS over an Infrared connection via a mobile phone.

The only problem was that SMS was paid per message in my country (double-digit cents each). Fortunately the preview dialog showed the estimated number of messages before sending – and it was something like 1000 for a small JPEG…

srmarm• 2 years ago

I know the article sort of touches on it but I only recall WAP as being a sort of mark up language akin to a mobile HTML rather than a network layer protocol. My old site (probably late 90s) had a wap.mysite.com subdomain which I hosted them on and which seemed to work well on my limited testing - I don't recall setting anything special up with the hosting - just the same hosting as the regular site. It worked very well on the contemporary mobiles but did I miss something back then?

lmz• 2 years ago

Isn't that what the middlebox (e.g. Kannel) was for? To transcode text to binary xml?

lxgr9• 2 years ago

I vaguely remember seeing a physical boxed software title in my local stationary/book/media store that I am pretty sure in retrospect must have been a WAP gateway you could install on Windows and dial up to your modem from a mobile phone.

The idea was presumably that if you'd have a second line or maybe broadband connection on your computer, you could save on your mobile operator's WAP fees if you had cheaper local calls to your own landline, or possibly access local data on your PC?

joecool10293• 2 years ago

Weird to see this mentioned now since I just mentioned it a few comments ago. But if you just have an old device and need a WAP 1.0 gateway you can use this: https://nbpfan.bs0dd.net/index.php?lang=eng&page=wap%2Fmain

Here's a pic of my first cellphone loading it earlier this year: https://files.catbox.moe/cmi78w.jpeg

Newer mid-2000's phones are WAP 2.0 and don't need a gateway (they also mostly support j2me, so this is the way to have a mostly usable browser with opera mini, otherwise pretty much all TLS sites but m.google.com will fail)

EDIT: I am on t-mobile and they shut down their WAP gateway ages ago with the exception of MMS.

DanAtC• 2 years ago

Is T-Mobile's 2G network still alive? I thought it was shut down months ago.

On that note, are there any 4G phones that support WAP?

Edit: I saw your comment at https://news.ycombinator.com/item?id=42434295 Using an eUICC is a neat hack! I'll have to try that.

joecool10293• 2 years ago

Yeah, they were going to shut down but it doesn't cost them anything to keep it running and avoids a lot of liability on devices that can't do voLTE/voNR (for 911/government/legacy). I would imagine it's also a small revenue stream from international roamers on their network.

They had good spectrum planning so it fits in their guard bands in 1900mhz without fucking up LTE or NR deployments. That or since Neville retired (the CTO for most of their history) they stopped beating deadlines.

lhamil64• 2 years ago

Out of curiosity, how did you get your old phone online? Did it have wifi, or were you able to get it on an actual mobile network? I thought I heard the 2g/3g networks have mostly shut down, at least in the US

joecool10293• 2 years ago

Did it have wifi, or were you able to get it on an actual mobile network?

Actual network. The phone pictured is from 2002, it did not have wifi. I had to solder in a new battery to get that far.

3G is shut down, 2G remains on with T-Mobile in areas they had it previously. As I stated before you need an old SIM card to use 2G only devices on the network. Newer cards activated in the past 5-7 years or so will only work on 2G with a 3G or newer phone.

kerkeslager• 2 years ago

Kannel should take a page from the Weatherization Assistance Program and promote their work on the Wireless Application Protocol with contemporary music.

UniverseHacker• 2 years ago

I remember WAP was very popular in the summer of 2020.

From what I remember the “authentication protocol” wasn’t very “secure.” A 3rd party “gym hat” type device is typically recommended.

egorfine• 2 years ago

Oh the memories. I have been running the first WAP gateway in Ukraine on Kannel.

Kannel: Open-Source WAP and SMS Gateway

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