Callify will popup a screen with fast actions just after your call (call, message and mail) and quick actions via the contact badge

You can enable or auto close the application in settings

Callify also got a home widget which display your last phone call : contact picture, name, time, direct call button and direct message button. You can filter the call types you want to display(incoming, outgoing and missed)

Highly customizable !

Cool looking old style widgets!

The Instant Meeting is a simple and easy-to-use application for managing the ringing mode of your mobile phone. It allows You to change the mode of the ringing (Loud, Silent, Vibrate) for a certain period of time (meeting mode). After this time, the previous ringing mode will be resotred" Application has a nice widget You can add to Your home screen.

Shut Me Up shut ring-tone of call or SMS from undesirable people
Shut Me Up create black-list if anyone in the black-list calling you or send SMS to you, your mobile acting as in silent mode.
you can select a contact which contain many phone numbers

Some users are given company issued phones. The phone bills are paid for by company too. However some companies would like to ensure that calls received and dial-ed out are strictly for business purposes. Hence they would request for each call that is ended, the call purpose should be attached. This allow company to check and tally with the monthly bill issued by the service provider.

Plug-in for Locale (Tasker, Llama, Setting Profiles, ...) which allows you to perform tasks after incoming/outgoing phone calls.

This app provides a simple search with order criteria screen for all your Call Log that come pre-installed with Android smart-phones. It allow you to narrow down the call log to a selected date range, show total incoming,outgoing,missed minutes for that selected date range, Delete All feature to delete at "one shot" call logs for that selected date range.

For users who are into support line, missed calls from clients are norm due to many calls coming in. However once you get back to them or they finally get through to you, all past missed calls are redundant. But yet support user have to manually go and delete those missed calls from the Call Log.