If this isn't a function of your CRM software (you forgot to tell what CRM software you use) add it yourself or have it done. Surely there are a lot of Salesforce programmers who can do it (if you happen to use Salesforce).
Kees
I need help finding software that will allow me to enter a customer's name, phone number, and/or e-mail address and schedule a next day, 2 week, and 6 month callback after the sales all with a single click.
I'd like it to populate my calendar with all these appointments and set reminders for me to make these calls.
So far I haven't found anything that does exactly this. Any advice?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic