On Fri, 2011-05-06 at 11:02 +0100, Marc Herbert wrote: > >> By the way it is not possible to enter a blank APN either (asking the > >> network use the default APN). This again works perfectly with wvdial. > >> And this is valid. > > > Yes, it's valid, but note that the "default" APN is stored in the > > *device*, not the SIM card, and has no relation to the SIM card at all. > > So if you ever swap SIM cards, or use a different provider, then the APN > > is surely going to be wrong and the dialing will fail. However, I've > > been thinking of ways to enable using the "default" APN since that works > > for some phones that don't allow setting the APN at all via AT commands, > > but where dialing works fine. > > > > No, I was not referring to any default APN stored from the phone, but > to the case where the phone does not provide any APN to the network *at > all*. > > Section 3.1 "Definitions" at the very beginning of 3GPP 23.401: > > Default APN: A Default APN is defined as the APN which is marked as > default in the subscription data [...] when no APN is provided by > the UE". > > UE = User Equipment. The "subscription data" comes from the HSS in the > network. > > In the same spec see also paragraph 12 in section 5.3.2.1. This > paragraph has about 5-6 sentences starting with: "If the UE does [not] > provide an APN,..." > > The operator I can connect to using a blank APN did not even exist yet > when I bought the phone, so for sure the phone is not sneakily > providing any "good default APN" to get me online. It is a old > 2.5G EDGE phone by the way.
And T-Mobile appears to allow this as well according to my testing; I looked around and couldn't find much information on it at all, but you're right, and we should allow passing no APN to MM, which would trigger MM to create a blank "default" PDP context with no APN, which MM would then activate. Then we hope it works. Dan _______________________________________________ networkmanager-list mailing list networkmanager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list