design patterns for telecom software hard multithreading problems

In Martin Fowler's book Patterns of Enterprise Application Architecture he writes on page 2: "In some ways enterprise applications are much easier than telecoms software -- we don't have very hard multithreading problems ...".

Is anybody aware of a summary of those "very hard multithreading problems" and solutions, in the form of design patterns, like the famous GoF Design Patterns book?

There is the POSA book. But those books might be too general and fundamental. More domain focused examples would be what this question is after.