How do the phone calls work at a federal prison? Are the inmates only allow to call?

Federal inmates are allowed 300 minutes per month (400 mins Nov & Dec) - outbound calling only. They are 15-minutes each and are paid for from their Trulincs account (which can be funded by outside people or through the job they have inside). The calls are either SIX cents per minute (local) or TWENTY-ONE cents per minute (long-distance). InmateAid can get you a local line for almost all federal facilities for only $5.00. You save $45 per month!!