On Mon, May 28, 2018 at 09:36:59AM +0200, Keith Whyte wrote: > > > On 24/05/18 15:47, Neels Hofmeyr wrote: > > On Wed, May 23, 2018 at 10:27:38PM +0200, Keith Whyte wrote: > >> From quick observation on legacy openBSC, we just accept the PERIODIC > >> LUR for a "detached" MS and update the LAC in the HLR. > > Perodic LU applies to attached MS, not detached ones.
Ah, I understand now. I got the wording the wrong way, thought you wrote "we accept Periodic LU *only* for detached MS" while you meant to say "when a Periodic LU comes in for a detached phone, we simply accept it". Ok, yes, the idea remains: not trigger SMPP signals on the periodic-ness of the LU, but rather wherever the MSC decides to change between "attached" and "detached". Whether a "periodic" lu is then also accepted as "imsi attach" or not is then a mere implementation detail of the MSC. ~N
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