I think that ActiveSync only forwards a couple of TCP ports. Certainly it
does HTTP, SMTP, POP3, but I'm skeptical of random other ports, since
ActiveSync on the desktop would have to really act like a proxy to make that
work. If you used HTTP to get/set your database data (via Merge Replication
with SQL Server, for example), that should work.

Paul T.

<f.kornhoffer@laufwerk.de> wrote in message
news:085d2064-13b2-4696-b89b-bccb945e2ee9@k13g2000hse.googlegroups.com...
> Hi Chris,
>
> thanks for your reply.
>
> But we want to have the communication just in the other direction.
>
> - DB is installed on a server in the network
> - usually the mobile device connects to LAN over WLAN
> - when connected via WLAN the mobile device can connect to the DB on
> tcp port 49001 (no udp needed)
>
> And now as a fallback if there's something wrong with WLAN - I'd like
> to have the same possibility to connect to the DB. But in this case
> with activesync. And for that it seems I have to tell activesync, that
> a request coming from the mobile device on port 49001 should be
> forwarded just like i.e. if I would open Internet Explorer on the
> mobile device.
>
> Is this possible?
> Florian