ZM Dialer dials a specific number at given times x times.

Options:

Number = Number to dial
Max Dials = Maximum amount of phone calls
Delay Before Dialing = Seconds delay before the phone starts dialing… ie the program won’t activate until XXXX seconds time.
Connect Time = Seconds from start of dialing to ending the call… 10 seconds is good for mobile to mobile.
Dialing Interval = Seconds between dials

http://forum.xda-developers.com/showthread.php?t=475504