I tested this on mako HW, image 172, with a WCDMA network simulator (Anritsu MD8470A) where I can switch the simulated basestation on and off. At least in this simulated scenario, the data connection always comes back.
Some commented output from the monitor-ofono test script: # base station out of reach {NetworkRegistration} [/ril_0] Strength = 0 {ConnectionManager} [/ril_0] Attached = False {ConnectionManager} [/ril_0] Bearer = none {NetworkRegistration} [/ril_0] Status = searching {NetworkOperator} [/ril_0/operator/00101] Status = available {NetworkRegistration} [/ril_0] Name = {NetworkRegistration} [/ril_0] Status = searching # data connection stops {ConnectionContext} [/ril_0/context1] Settings = {} {ConnectionContext} [/ril_0/context1] Active = False {RadioSettings} [/ril_0] FastDormancy = True {RadioSettings} [/ril_0] FastDormancy = False {ConnectionManager} [/ril_0] Attached = True {ConnectionManager} [/ril_0] Bearer = hspa # base station is active again {NetworkRegistration} [/ril_0] Status = registered {NetworkRegistration} [/ril_0] Technology = umts {NetworkRegistration} [/ril_0] LocationAreaCode = 128 {NetworkRegistration} [/ril_0] CellId = 0 {NetworkOperator} [/ril_0/operator/00101] Status = current {NetworkRegistration} [/ril_0] Name = ANRITSU (Test PLMN 1-1) {NetworkRegistration} [/ril_0] MobileCountryCode = 001 {NetworkRegistration} [/ril_0] MobileNetworkCode = 01 {NetworkRegistration} [/ril_0] Status = registered {NetworkRegistration} [/ril_0] Strength = 0 {NetworkRegistration} [/ril_0] Strength = 67 # data context is active again {ConnectionContext} [/ril_0/context1] Settings = { Address = 192.168.1.1, DomainNameServers = 192.168.1.2 192.168.1.2, Gateway = 192.168.1.2, Method = static, Interface = rmnet_usb0, Netmask = 255.255.255.0 } {ConnectionContext} [/ril_0/context1] Active = True Not necessarily 100% the same as real field testing, though. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1234634 Title: Data does not re-enable loss of reception Status in “network-manager” package in Ubuntu: New Status in “ofono” package in Ubuntu: Incomplete Bug description: If i drive through an area that does not coverage with my mobile provider, when i re-enter an area that does have coverage my data connection/3G does not reconnect automatically. There is nothing i can do from the phone to re-enable it except reboot it, which in the long run is less than desirable operation. This has happened consistently from V72-V78 of the software. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1234634/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp