When I plug in my usb mobile broadband modem (ZTE MF-667), in the network manager instead of a mobile broadband connection, I get an ethernet connection, called: Ethernet Network (ZTE WCDMA Technologies MSM), which of course doesn't work. 
Here is my lsusb output and the relevant parts of dmesg output:  
lsusb:
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0cf3:3005 Atheros Communications, Inc. AR3011 Bluetooth
Bus 001 Device 004: ID 04f2:b1b9 Chicony Electronics Co., Ltd Asus Integrated Webcam
Bus 001 Device 005: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader
Bus 002 Device 004: ID 19d2:1405 ZTE WCDMA Technologies MSM   
dmesg:
[  195.328467] usb 2-1.1: new high-speed USB device number 3 using ehci-pci
[  195.423545] usb 2-1.1: New USB device found, idVendor=19d2, idProduct=1225
[  195.423555] usb 2-1.1: New USB device strings: Mfr=3, Product=2, SerialNumber=4
[  195.423561] usb 2-1.1: Product: ZTE WCDMA Technologies MSM
[  195.423567] usb 2-1.1: Manufacturer: ZTE,Incorporated
[  195.423572] usb 2-1.1: SerialNumber: P680A1ZTED000000
[  195.426319] scsi7 : usb-storage 2-1.1:1.0
[  196.425354] scsi 7:0:0:0: CD-ROM            CWID     USB SCSI CD-ROM  2.31 PQ: 0 ANSI: 2
[  197.447919] usb 2-1.1: USB disconnect, device number 3
[  197.457582] sr0: scsi3-mmc drive: 243x/186x xa/form2 cdda pop-up
[  197.457594] cdrom: Uniform CD-ROM driver Revision: 3.20
[  197.459058] sr 7:0:0:0: Attached scsi CD-ROM sr0
[  197.459483] sr 7:0:0:0: Attached scsi generic sg2 type 5
[  197.759186] usb 2-1.1: new high-speed USB device number 4 using ehci-pci
[  197.854543] usb 2-1.1: New USB device found, idVendor=19d2, idProduct=1405
[  197.854556] usb 2-1.1: New USB device strings: Mfr=4, Product=3, SerialNumber=5
[  197.854564] usb 2-1.1: Product: ZTE WCDMA Technologies MSM
[  197.854572] usb 2-1.1: Manufacturer: ZTE,Incorporated
[  197.854579] usb 2-1.1: SerialNumber: P680A1ZTED010000
[  197.957739] scsi8 : usb-storage 2-1.1:1.2
[  198.076554] cdc_ether 2-1.1:1.0 eth1: register 'cdc_ether' at usb-0000:00:1d.0-1.1, CDC Ethernet Device, 00:a0:c6:00:00:00
[  198.076583] usbcore: registered new interface driver cdc_ether
[  198.955985] scsi 8:0:0:0: CD-ROM            CWID     USB SCSI CD-ROM  2.31 PQ: 0 ANSI: 2
[  198.956797] scsi 8:0:0:1: Direct-Access     ZTE      MMC Storage      2.31 PQ: 0 ANSI: 2  
I created the appropriate mobile broadband connection manually, but I cannot enable it in network manager, since the device is not recognized as mobile broadband. 
Any tips how to make it work?