Change in osmo-bsc[master]: drop all BSC originated USSD notification features

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neels gerrit-no-reply at lists.osmocom.org
Wed May 27 14:40:43 UTC 2020


neels has posted comments on this change. ( https://gerrit.osmocom.org/c/osmo-bsc/+/18498 )

Change subject: drop all BSC originated USSD notification features
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Patch Set 1:

I'm also curious about laforge's opinion here.

This code does MSC tasks in the BSC, and I fail to see how it is useful.

If no MSC is connected, the MS will not be able to attach, and will report that to the user in the phone OS specific way / try another PLMN. If we accept service and send USSD, the phone is tricked into thinking that it got accepted and will no longer cycle other operators. I consider that a bad anti feature.

If an MS is attached and the MSC then drops away after that, this feature doesn't help either, since the BSC does not track who is attached. MS will notice only with their next Complete Layer 3, with or without this code.


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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Change-Id: Iaef6f2e01b4dbf2bff0a0bb50d6851f50ae79f6a
Gerrit-Change-Number: 18498
Gerrit-PatchSet: 1
Gerrit-Owner: neels <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-Reviewer: neels <nhofmeyr at sysmocom.de>
Gerrit-CC: fixeria <axilirator at gmail.com>
Gerrit-Comment-Date: Wed, 27 May 2020 14:40:43 +0000
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Gerrit-MessageType: comment
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