ubuntu-phonedations-bugs team mailing list archive

[Tony Espy <1449990@xxxxxxxxxxxxxxxxxx>]

@Simon

Thanks so much for the detailed bug report, and suggested fix(es).

I've changed the Importance of this bug to Wishlist, as it's a feature
request that will need to be reviewed by product management before we
can move on it.   That said, patches are always welcome...

Also, the original bug was "National Data Roaming on BQ Acqarius E4.5".
I would argue that your suggested implementation goes much further than
this, and would be much more complicated to implement.  Some of the
features you suggest also aren't really within our control.  Much of the
network registration logic ( ie. determining which operator to choose
based upon signal strength ) is handled within rild, and isn't something
that we can have too much influence on.

For the sake of this bug, I think we should limit it to:

A card preference for general roaming setting:
* Allow any network (international Roaming) with that card
* Allow only national roaming with that card
* Limit to home network (Roaming disabled for that card)

A card preference for data usage (With the valid values as above) to
specify when data may be used.

These two preferences provide a basic implementation of national
roaming.   I would suggest breaking out the remainder of comment #7 as a
new bug.

** Also affects: canonical-devices-system-image
   Importance: Undecided
       Status: New

** Changed in: canonical-devices-system-image
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1449990

Title:
  National Data Roaming on the bq Aquaris E4.5

Status in the base for Ubuntu mobile products:
  Confirmed
Status in ofono package in Ubuntu:
  Confirmed

Bug description:
  Situation:
  German mobile network operator "o2-de" (MCC 262, MNC 07) has merged with another operator, "e-Plus" (MCC 262, MNC 03). Both operators have decided to allow national roaming between their networks for all customers and for all services (phone calls, SMS, data). The "other" network appears to the customer with the name of their original, provider, but an  added plus sign, e.g. if you're an "o2-de" customer the e-Plus network will appear as "o2-de+" to you.

  
  Expected behavior:
  The bq Aquaris E4.5 roams into the other network if necessary and all services are available. Ideally the device would not even go into "real" roaming mode because national roaming is different from international roaming.

  
  Actual behavior:
  The bq Aquaris E4.5 roams into the other network and mobile data is deactivated because the phone does not differentiate between national and international roaming. The "mobile data roaming" switch has to be explicitely enabled, which can cause problems for the user since the phone supports two SIM cards.

  
  Complications:
  - Both operators are changing their networks during live operation, other phones have problems too.

  - There is a long list of MVNOs and every one of them has to adapt to
  the changes too. For example I have a SIM card by o2-de MVNO
  "netzclub" in my bq phone and the network list now also shows the
  expected "netzclub+" entry, roaming to it works. On the other hand I
  have a SIM card by e-Plus MVNO "MEDIONmobile" in my Android Nexus 5
  and there the network list does not show the expected "MEDIONmobile+"
  entry, but just an entry for "o2-de", and I cannot roam to "o2-de"
  even if I force it.

  
  Notes:
  II think there should be a similar situation in Sweden, where operators Tele2 and Telenor created a shared 4G network, and there are probably other countries with comparable setups.

  
  Debugging data:
  - I added the output of /usr/share/ofono/scripts/list-operators on the bq phone.

  - I added two outputs of /usr/share/ofono/scripts/list-modems on the
  bq phone, once while connected to my original "netzclub" MVNO network
  and once while roaming in the "netzclub+" network. All personal data
  has been removed, but I am willing to share it in private.

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