[Asterisk-Users] iax or sip

[Randy Bush]

i am looking at iax to see if it is applicable to my needs.  i
would appreciate any corrections of what i think i have understood
but probably have not.

iax uses udp and traverses nats.  neither of these seems useful to
me.  i loathe nats, and udp is not well-behaved in the sense of
congestion avoidance.

trunking will save some bytes in flight iff one has four or more
streams moving between two pbxes.  but who would want to have the
pbxes in the data stream anyway?  reinvite rules, especially in a
geographically distributed use scenario.

now, i could see a network of iaxen if there was some way to
negotiate call routing with costs etc.  but trip looks a bit ugly
and kinda far away.  and it certainly is not part of current play.

what am i missing here?

randy