From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============1076312628611752150==" MIME-Version: 1.0 From: Marcel Holtmann Subject: RE: CDMA SIM atom Date: Mon, 25 Jul 2011 19:01:03 +0200 Message-ID: <1311613268.8920.24.camel@aeonflux> In-Reply-To: <568DE01DA537804BA73470071BAC288938F4E5B1@irsmsx503.ger.corp.intel.com> List-Id: To: ofono@ofono.org --===============1076312628611752150== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Hi Bertrand, > > > We are working on CDMA to enable some USB dongle, and we need to get = the > > IMSI for the ConnMan interface, to create the interface name. > > > > > > We could use the AT SIM atom, since there should be no big difference > > between a CDMA SIM and a GSM SIM (same kind of functionality for SIM > > lock/unlock, same IMSI info). > > > > > > But we could also create a CDMA dedicated one. This will duplicate so= me > > code, but will be 'cleaner'. > > > > > > I would prefer the solution of a CDMA SIM atom, so CDMA plugins use o= nly > > CDMA atom, but I would prefer to have the oFono community opinion befor= e going > > into the code. > > = > > you do not need an IMSI for ConnMan. You just need a proper unique > > identifier that is consistent. Using the hardware serial number in case > > of CDMA should be a good enough interim solution. > = > The user can change its SIM card and put it in another dongle > = > > We are using the IMSI for GSM since we wanna bind stored settings > > towards the SIM card. So that hardware swapping has no effect on the > > user experience. > = > This is exactly what we also want to do with CDMA dongle. I know CDMA dongles in theory have a SIM card, but not in practice. Or are you telling me the CDMA dongles you have, have SIM cards? And these SIM cards are used for anything? = > > With CDMA we could neglect this actually. So far all > > CDMA account are still bound to the hardware itself. > = > Why do you want to neglect this? > = > We should be consistent have have the same behaviour for this. If someone= unplug and replug its dongle, he do not want to re-insert the data call pa= rameter, as with a GSM dongle. I still don't believe that any CDMA operator so far really uses SIM cards. I heard about some cases with Verizon where they have CDMA + LTE in deployment. > And what about PIN? Good question. It is not a SIM PIN, it is a hardware PIN in the first place. And only if you have a SIM, you have SIM PIN. So the same question stays, where is your SIM card in CDMA hardware that you have right now? Regards Marcel --===============1076312628611752150==--