The $167 you are looking at is the ten percent option, which is what a bondsman typically requires as their non-refundable fee to post the full $1,700 on his behalf. If you can come up with that amount, a bail bondsman handles the rest and he gets out while his case moves through the courts.
If that is not possible and he has to sit it out, the timeline depends entirely on the court's schedule and how backed up the docket is. There is no fixed answer. Some cases move to a resolution in a matter of weeks. Others drag on for months depending on the jurisdiction, the complexity of the charges, the availability of court dates, and whether any continuances get filed along the way.
The court is not in a hurry on its end. The bond exists to guarantee he shows up to his court dates, and as long as he is sitting in jail that guarantee is already satisfied from the court's perspective. That removes any urgency for them to move quickly.
The most productive thing you can do right now is get an attorney involved if one is not already. A lawyer can sometimes negotiate a bond reduction, file a motion for a bond hearing, or push the case toward a faster resolution. At $1,700 the bond is relatively modest, which may make a reduction argument harder, but an attorney reviewing the full circumstances of the case is the best way to find out what options actually exist.
Every day he sits is time he may eventually get credited toward any sentence, but getting him out now is almost always the better outcome if it is financially possible.