While at the Pulse event last week I talked to a variety of IBM Tivoli business partners. One in particular that I found interesting was a vendor called Derdack. Derdack provides a variety of solutions around the name Enterprise Alert. If you go this link at their website, http://www.derdack.com/en/solutions/reliable-mobile-notifications-for-ibm-tivoli/ you will find information on their solution that integrates with IBM Tivoli monitoring.
What I find interesting with their solution is that it adds some interesting alert management capabilities to ITM that ITM does not provide on its own. Among these features include multiple formats of notification (voice with text-to-speech, SMS text, instant messaging, e-mail, fax, smartphone push), real-time tracking of notification delivery, automated escalation chains, smartphone apps for remote incident management, and intelligent notification workflows.
These all seem like very useful extensions to the monitoring and notification capabilities of base ITM. While I have not used this solution personally, it looks like very good technology.