Comment 31 for bug 509738

@Tony

Understood, sorry for the confusion.

Seems that the new version does _not_ fix the problem. Here is what I observed so far:

Installing modem-manager 0.2.git.20100102t025215.a06b3f2-0ubuntu1~nmt1~karmic and network-manager 0.8~rc1-0ubuntu1~nmt1~karmic lets the problem disappear. After that when installing an updated network-manager and modemmanager, the modem continues to work until the kill switch is used. After using the kill switch once, the problem occurs again.

Please note that I observed the above behavior exactly once.