session target command (TCP vs. UDP)

[g.hammond]

Is it possible specify whether to forward calls using UDP vs. TCP?

My situation is this.  We are testing a fax product and the next hop is a fax server over SIP.  The server needs to see the traffic over UDP.  My target command is as follows:

session target ipv4:10.x.x.x:5060

Is it possible to specify UDP port 5060 vs. TCP port 5060 or does this command send the traffic to both TCP and UDP?

Thanks.

[ADAM CRISP]

Yes. There's a command under the dial-peer:

session transport udp