3G Dongle compatibility with DrayTek Vigor 2830N

Does anyone happen to know whether the Vodafone K3772 Internet dongle is compatible with the DrayTek Vigor 2830N series router?

It is not on this list and DrayTek themselves have told me the K3772 is untested but may work.

In case anyone is interested, the DrayTek Vigor 2830N worked fine with the Vodafone K3772 dongle in failover mode.

I used these settings:

Sim PIN code: blank
Modem Initial String: AT&FE0V1X1&D2&C1S0=0
APN Name: internet
Modem Initial String2: AT
Modem Dial String: ATDT*99#
PPP Username: web
PPP Password: web
PPP Authentication: PAP or CHAP

The APN name for PAYG dongles should be pp.internet or internet for contracts.