[Serusers] ser/rtp exerciser

[Alex Bligh]

Before I reinvent the wheel and go write it, is there a utility which will
simulate making & receiving calls (i.e. SIP conversations, **plus RTP**) in
scale (to answer a question like "will my SIP+RTPproxy deployment scale for
{100,1000,10000,100000} users using the following parameters for average
call duration, % phones in use etc."

If not, anyone have any recommendations for a (free) stack that does a
decent UAC/UAS job, including audio, and will run without GUI?

Alex