New Mobile Phone Models - Latching Issue using OSMO-NITB - Connection Drops approx after 3 Minutes

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Neels Hofmeyr nhofmeyr at sysmocom.de
Mon Mar 30 15:24:54 UTC 2020


On Mon, Mar 16, 2020 at 02:37:38PM +0000, Ron wrote:
> Does anyone experiences, in newer phone models, that after a successful latched to OSMO-NITB, it will dropped its connection in a few minutes?
> 
> We have experienced this issue to the following mobile phone models:
> 
>   1.  iPhone X - Software Version - 13.3 (Connection drops approximately after 3 minutes)
>   2.  Samsung S10 (Connection drops after 1 - 3 minutes)
>   3.  Samsung Note 9

I think some phones drop out of the network when they cannot establish both a
CS and a PS attach, but it's just guessing and I have no details on these
particular models.

~N
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