22 Jul
2009
22 Jul
'09
6:22 p.m.
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(a)gnumonks.org> http://
laforge.gnumonks.org/
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"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300
175-7 Ch. A6)
David A. Burgess
Kestrel Signal Processing, Inc.