Sun GlassFish Communications Server 1.5 Release Notes

Communications Server first acts as a UAS, then as a proxy, and generates NOP (Issue 1432)


When it receives an INVITE request, Communications Server first acts as UAS, replies to this request with 1XX, and then proxies this INVITE request to another instance, which replies with 200 OK. The 1xx creates an internal virtual branch while the 200 message creates a real branch. Upon reception of 200 OK from B the internal virtual branch should be cancelled


This exception trace does not affect the functionality of the virtual proxy branch.