I dragged down the latest src via CVS yesterday, I'm not sure this is
worthy of an official bug...
############
debian*CLI> iax2 show stats
IAX Statistics
---------------------
Outstanding frames: 2 (0 ingress, 2 outgress)
############
"outgress" should possibly be "egress"
(http://dictionary.reference.com/search?q=egress)
Regards,
Nathan.