Do isp provide static IP addresses?

Yes, but typically for a fee. Alternatively, you could use a dynamic DNS service which ties your global IP address (the address assigned to you by the ISP) to a hostname/domain name. This typically is accomplished by a small piece of software you can install on a computer on your network that keeps track of your IP address (since non-static IPs can change) and creates a DNS entry with the hostname and IP address.