Salut, YateBTS!

Today, we are proud to announce the release of YateBTS 1.0, the result of a collaboration between my new company, Legba, Inc, and the good people at Null Team SRL, the home of Yate.

YateBTS is basically the OpenBTS L1 PHY, L2 link layer and L3 radio resource manager, with all other functions implemented in Yate.  This offers some huge advantages over the original OpenBTS SIP interface, including dramatically improved stability, direct support for the all of the protocols already supported by Yate (XMPP/Jabber/Jingle, H.323, MGCP, IAX, ISDN, and others) and lots of other Yate features, like SNMP.  Most notably, though, when YateBTS is used with the commercial version of Yate, it gets the benefit of Yate’s deployed and certified SS7-MAP interfaces, for ready integration into existing mobile infrastructure, including roaming support.

Architecturally, YateBTS is built from a “decapitated” version of the OpenBTS public release, called “MBTS", interfaced to Yate over a socket.  Through this socket, the Yate messaging engine sees abstract “connections” that represent the dedicated radio channels to the mobile stations.  This approach allows Yate and the MBTS component to be licensed independently.  So MBTS inherits the OpenBTS AGPLv3 license and Yate is distributed under either GPLv2 or a commercial binary license, depending on the version.

In the first public release, YateBTS supports GSM-FR calls, SMS and GPRS.  This is a smaller feature set than OpenBTS, but since Yate now allows the control layer to be coded in Javascript, we expect new features to develop very quickly.  (Really; once we decided to build YateBTS it only took a few weeks to get this far.)

I hope everyone has fun with this new toy.

That said, YateBTS is not the main thing we are working on.  More on that later. ;)

Hello from Romania!

I have set up a new blog under my own name. I left Range Networks back in September and "OpenBTS" is their trademark, so I won't be using that label for my work anymore.  It's just as well; I needed the change.

After taking a little time off, I set up a new company and recruited a new development team in Bucharest.  We have been working closely with Null Team, the company behind Yate, on some new projects.  I have been very quite about all of this until now, but soon we will starting releasing things and talking publicly.

Until then, for your entertainment, I present a chart to help you understand some important Romanian words that probably don't appear in your RO-EN dictionary:

• BricoStore, Hornbacher, Baumax, OBI : Home Depot, Lowe's
• Media Galaxy : Best Buy
• RDS, UPC : Comcast
• Enel : PG&E, ConEd
• Ursus : Budwiser
• Ciuc : Papbst
• Caltoboș : Boudin
• Carrefour, Billa : Safeway, Kroger
• Real : Wal-Mart
• IKEA : IKEA 
• Dacia : Toyota

Other observations on living in Bucharest:

• All the big US fast food brands are here, but the restaurants are nicer.  For example, Romanian Pizza Huts have table service and full bars.
• Always carry cash.  Get a real (smart card) debit card from a local bank.
• The cost of rent is about 1/3 what it is in San Francisco.
• The cost of eating out is about 1/3 what it is in San Francisco, unless the menus are all in English, in which case it will be about the same.
• The standard taxi rate is 1.39 RON/km, don't pay a cabbie less than 10 RON (about US$3), no matter how short the trip. And if you say "thank-you" ("mulțumesc") before you get your change, that is the same as saying "keep the change".
• Bucharest drivers don't look through intersections and will park anywhere.
• 1 RON is the same as 1 leu and the plural for leu is lei.  To make it a little more confusing, a lot of Romanians will call 100 lei a "million" because there was a 10000:1 currency revaluation a few years ago.

That's it for now.  More interesting news coming soon, though.