Harald -

Congratulations on the license.

One thing we plan do at Burning Man is run an auto-provisioning system via SMS, using the BTS itself as a SIM reader. When a handset first tries to register, we will accept the location updating attempt and then send a text message saying "If you want experimental service, please reply with your telephone number." The reply to the text message then goes into a function that creates a new entry in the provisioning database based on the originating IMSI and the content of the message. Then we will respond with something like "Thanks for joining our test. This is an experimental network. WE DO NOT SUPPORT EMERGENCY CALLS. To quit the test, reply to this message." In the US, at least, the part about emergency calls is really important.

I realize you don't have a lot of time left to get ready for HAR, though. This may or may not be a simple hack, depending on the state of your SMS software. But if it works, it will be a lot faster than provisioning phone by hand.

-- David

On Jul 22, 2009, at 8:38 AM, Harald Welte wrote:

Hi!

For those who are planning to attend HAR2009 (http://har2009.org/):

We have just received regulatory approval for four ARFCN in the GSM900 band during HAR2009. The Power on each ARFCN for BTS and MS is restricted to 100mW.

There are also some GSM1800 ARFCN's that we can use with up to 200mW, though I don't yet know their values and how many.

I have created a wiki page at https://wiki.har2009.org/page/GSM for further coordination of GSM related activities at HAR2009.

It would be great to know which other OpenBSC users/hackers will be present at the event. As there are multiple things that I'm planning to do at HAR2009, I would be happy about any help that I might get from you guys.

Basically there will be

• A 'stable' GSM network with BS-11 and OpenBSC for people to test their phone interoperability with OpenBSC by making/receiving

calls and SMS.

• A nanoBTS1800 for use by OpenBSC hackers only to test/fix OpenBSC

stuff before putting it on the BS-11 'stable' network

• work on airprobe.

Especially for the 'stable' network, there is a lot of help required, among others:

• physical setup of the BS-11
• registration of mobile phones into the network. It would probably

be good to have a setup where people can plug their SIM into a SIM card reader (or phone that can read the IMSI). We can then create the SQL entry with their IMSI and extension.

• making sure the network runs and OpenBSC / hfcmulti gets

restarted in case something hangs.

Please just respond to this mail if you want to help in any way.

Regards,

• Harald Welte laforge@gnumonks.org http://

laforge.gnumonks.org/

====== "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)

David A. Burgess Kestrel Signal Processing, Inc.