Fotr those of you have habe missed the Call Log Duration entry in your Treos, natara offers a solution, albeit for $9.95. Actually does a lot more for organizing this info for billing and other purposes

Key features:

* Groups calls by any field (name, month, time, year, duration), for quick retrieval
* Totals the duration of calls for selected groupings
* Automatically archives entries onto desktop to free memory on handheld
* Powerful export feature for use in reporting or other applications
* Quickly searches and displays call log information

http://www.natara.com/comet/