[Users] choosing transport according to message size

[JF]

Thanks for your answer.

This is a real problem when there are several SIP hops adding Vias and
Record-Routes, especially with INVITEs carrying SDPs as large as 700
bytes... Messages easily grow bigger than the MTU.
Is there a recommended way of handling this using openser? Anyone else
facing this kind of problems? The safest way is to use always TCP...

JF

On 5/10/06, Bogdan-Andrei Iancu <bogdan at voice-system.ro> wrote:
> Hi,
>
> no, there is no way to figure out the size of the outgoing package. The
> only automatic protocol selection is via NSPTR records (if the target
> has such records) - please see the SIP location for this.
>
> also you can choose the proto via the script.
>
> regards,
> bogdan
>
> JF wrote:
>
> > 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
> >
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> >
>
>