[asterisk-dev] RTP trunking - 58% savings on media bandwidth?

[Will]

> Does this mean one could use h323 or SIP call control while using IAX trunking for media ?

It may be possible with coding wizardry if someone wants to rip the
trunking/media core out of chan_iax2 and move it into the pluggable
RTP architecture, but I don't know nearly enough about either of them
to give you a concrete answer for the future.  Currently, it is not
possible.