USB modem issue (can't connect)

[xoma]

Hi all, im trying to connect my ZTE MF627 to proxmox-ve 2.6.3.2 in order to get FreePBX working with cell communications. When I connect my device, i cant see it in /dev/ (should be recognized as /dev/ttyUSB*)
Here is "dmesg | tail" output:

usb 5-5: new full speed USB device number 2 using ohci_hcdusb 5-5: device descriptor read/64, error -32
usb 5-5: device descriptor read/64, error -32
usb 5-5: new full speed USB device number 3 using ohci_hcd
usb 5-5: device descriptor read/64, error -32
usb 5-5: device descriptor read/64, error -32
usb 5-5: new full speed USB device number 4 using ohci_hcd
usb 5-5: device not accepting address 4, error -32
usb 5-5: new full speed USB device number 5 using ohci_hcd
usb 5-5: device not accepting address 5, error -32

"lsusb" output:

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubBus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 002: ID 2109:3431  
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

What can I do to make my MF627 working?

P.S. Sorry for my English