County jail and state prison inmates can call as much as they want. As long as there is money on their books they can make  calls. In federal prison, the inmates are limited to 300 minutes per month (400 per month in Nov and Dec as a holiday bonus). InmateAid can make the calls less expensive if you talk often. Plans start at $8.95 per month, no contract, no hidden fees.

There is no set time period. It is first come, first served so to speak. If there is an opening, the inmate willl get the call to "pack out".

You might try calling the counselor. Since you are his parent, they might break protocol and tell you. This is normally privileged information but being a concerned parent they might give you some insight - but they definitely do not have to so be very polite.

The bond is there to assure the court that the offender will appear at their court dates. If they cannot post the bail, they must wait in the jail until their trial date. Depending on the court docket and what all is going on, it could be weeks or months that they sit.

First offense, marijuana and paraphernalia? This could be settled with a pre-sentence intervention where your fiance pays a fine and goes to class for a few days. There is probably no way to get it "erased", as that is his record now, unless this intervention comes with an expungment too.

Commissary is once a week. It typically takes one week before the newer inmates can get commissary. But it is more related to the "day of the week they are designated", for instance if they come into the institution on a Wednesday and the commissary day for him is on Tuesday, then he'll be able to go the next Tuesday. Also, money in their account must be there in advance.

We don't know enough of the case to make a determination. But, if this is possession of children pornography, he is NOT getting house arrest. If he is ill, then they will designate him to a hospital prison.

Inmates are credited for time that is spend in custody, whether it is for an hour in another county, that counts as "one day served". Therefore, the 90 days spent somewhere will definitely count towards his release date calculation

Anything that you can read... magazines, books and letters from you

Appeals require a clever lawyer that can find a mistake in the trial. They are generally a long long shot of even getting heard much less overturned.