Need ideas on implementing a Trial Period for a free app on Android Market

by acrosser » Thu, 05 Mar 2009 11:46:27 GMT


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1. rule based routing on Android

Hi


Could someone please suggest how can we do rule based routing on
android?

I'm using multiple interfaces on android (so multiiple possible source
ips)  and I want packets with different source ip to have different
defaul gw.

On linux it can be done as follows:

create an entry for new table in rt_tables file
add a route to this table: ip route add default via xx.xx.xx.xx dev
eth0 table new_table
and add rule that directs to this table in certain scenario: ip rule
add from xx.xx.xx.xx table new_table

however android allows me to do the first step and gives no error in
second step. But the route is not added to new_table and instead added
to default table. If default table already contains a default route
(which it mostly does) an attempt is made to add default route to it
which fails with error "File exists".

 I know that ip route add command does read the table name because if
i give a table name that is not in rt_tables file, it gives error. But
if i give a valid table name, route is not added to it.

could u please suggest how i can add route to my new_table so i can
make rules based on it.

Thanks

Tarun

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2. Retransmissions from PBX after disconnecting from emulator (charging) using sipdroid

Hi,

I'm a newbie to Android development but a very experienced developer
in the area of telephony applications.  I am working on a sip client
for Android, currently working with the Nexus One, Android 2.2 and
sipdroid 1.5.  Connectivity is via Wifi to our PBX.  I am using UDP
protocol.

My problem is this.  When the application starts, it of course
registers with the PBX (via wifi).  The REGISTER is responded with a
200 OK from the PBX and the phone is registered.  This works fine when
the phone is connected to the PC and charging.  However, as soon as I
disconnect from the PC (now running on battery), the first 200 OK for
REGISTER appears to be never received by the phone.  This causes a
retransmission of the REGISTER after 2 seconds, to which the PBX again
responds with a 200 OK which is now seen and the phone registers.

I have gone fairly deep into debugging this but as of yet have found
only dead ends.  Any help or advice would be appreciated.

I hope this is the right place to post this.  If there is a better
place, please let me know.

Thanks,

 - Ken

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