[Users] choosing transport according to message size

[JF]

Hi all,

Is there any function in openser that selects the transport protocol
(TCP or UDP) according to the message size? E.g. if the message going
out is bigger than MTU, use TCP... or does the script writer have to
take this into account every time a relaying function is called?
Also, in this second case, is the actual outgoing message size
available in the script (i.e. after lumps are applied)?

Thanks in advance,

JF