It is important to remember that the DMV can, and will, suspend your license two different ways in DUII cases.
Obviously, there is the court suspension when you are convicted of a DUII. This suspension is completely separate from any suspension related to a suspension for failing or refusing a breath test.
Thus, the DMV can, and will, still suspend your license if you refused or failed a breath test, even though no criminal charges were filed. Likewise, the DMV will suspend your license for a DUII conviction, even if you submitted to a breath, blood, or urine test and passed.