This used to work, and then sprint sprint put a stop to it, but when i was playing around with it today i discovered it works again!!!!!
-You must have free sprint to sprint calling for this to work!
Option A(Should work for everywhere outside of NYC)
-1. From your sprint phone call 11-xxx-xxx-xxxx, with x being a different sprint cell phone. (This allows you to enter the other person’s voicemail message without their phone ringing even once)
-2. When you hear their message push **
-3. Enter in your sprint number, followed by the # key.
-4. Enter in your 4 digit voicemail password (Dont know it? login to your sprint account at sprint.com to change it)
-5. Push 8 as soon as you are into your voicemail manager.
-6. Dial whatever number you want.
That call will come out of your unlimited sprint to sprint minutes, not your anytime minutes!!!!!
Option B-For NYC(This should work, if it doesnt please post in the comments!)
-Call a friend’s sprint cell, and get their voicemail, then continue from step 2 above!