Yes, jails do restrict calls, and new arrivals often go through an intake or orientation period before phone access is activated. That window is usually about a week, but at some facilities, it can extend longer depending on how backed up the intake process is or whether any holds or classifications are pending on the case.
Two weeks with no contact at all is on the longer end and worth following up on directly. Call the facility and ask to speak with a counselor. Explain that your husband has been there for two weeks and you have not heard from him, and that you want to understand what is happening with his phone access. Frame it as a respectful inquiry rather than a complaint. Counselors are generally responsive to concerns from family members when the tone is calm and the request is specific.
A few other things to check: make sure your phone number is on his approved call list, because even with funds available, inmates can only call numbers the facility has approved. If his number was recently set up, it may not have gone through the approval process yet. Also, confirm the phone account funds were applied to the correct number and facility.
If the counselor confirms everything is in order on the facility's end, the next step is to send a letter letting your husband know you are trying to reach him and ask him to call or write back.