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Generate a classmark update message from a given payload
this might need to be changed to get the version2 and
version3 parameters
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For the MSC we need to queue GSM04.08 messages until the
SCCP connection is confirmed to be open and then can send
the stored messages. The queue is limited to 10 messages
at which point new ones will be dropped. Currently the
only messages we get are measurement indication messages
but it is better to be safe than sorry.
The SCCP messages are sent as soon as the connection
is considered established and then no queueing happens
any more. While replacing sccp_connection_write calls
various memory leaks has been fixed.
For the MS we might have received a DTAP and need to do
an operation that requires a roundtrip and want to send
wait until this has happened. The two scenerios are sending
a SMS to the phone that requires to do something special
for the different SAPI. Currently it is assumed that
only one SAPI=0 -> SAPI=3 change happen during the connection.
For the first SAPI != 0 we will send the rll_ request
and then wait for the timeout or confirmation. In case
of timeout a SAPI "n" reject is sent and in case of
success the queue is getting emptied.
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This message will be needed when no RLL connection
on a different SAPI can be established or we don't
want to establish it.
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This is a BSC to be used by on-waves.com to connect to a real
MSC using SCCP over IP.
The following messages and features are currently implemented:
- IPA identity ack's
- COMPLETE LAYER3 INFORMATION
- DTAP
- PAGING COMMAND
- CLEAR COMPLETE/CLEAR REQUEST
- CIPHER MODE COMMAND/ REJECT /COMPLETE
It comes with a tool to create the enum's from the spec and
a very simple test server to do the handshaking.
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