Of course, even experts may miss something. Luckily, the JCP is robust and can cover most oversights. Time to market is very important. The JCP is formulated to meet this goal. No one developer, no one company, can possibly define a telecommunication API that everyone can use to solve 80 percent of the problems.
Telecommunication systems are just too diverse for only one entity to handle.
Instead, a group of experts from more than 20 different companies collaborates through the JCP to define the JAIN APIs. However, these experts don't arbitrarily decide when to discuss their problems together. Instead, the JCP requires close compliance to a structured set of stages. The JPC 2.0 regroups these phases into four broad stages. However, at a low enough granularity, the steps are essentially the same, but more inclusive.