Guys, sorry my english! I'm implementing a 3cx pabx but it requires me to put a range of ports (9000-10999) but the juniper does not have these functions. Not enabled, would someone help me? My juniper is the SRX300
You will need to create a custom application that includes your desired port range either tcp or udp as needed before you can create the rule itself.
You can follow the process of creating the custom objects (address and application) followed by the actual rule in this kb article.