Voxalot / SIP Broker Support Forums - Hotel-WLAN: registered but no sound at all

Hi,
at home the whole setup of my WLAN-Voip-ATA worked perfectly: all my critical ports are 80 - only RTP Audio I left @9000.

Now I am in an hotel, the rooms have free WLAN, my ata is registered at Voxalot - and I can' call :(

- I called this morning, my call records showed them:

Quote:

30-06 10:37:28 10:37:47 0043...0830 00:00:19
30-06 10:38:26 10:38:41 0043...976 00:00:15
30-06 10:39:22 10:39:43 0043...714 00:00:21

But I haven't heared anything and they haven't heard :(
The same happens if I call *600 I can't hear anything.

- I just tried to change my proxy from proxy.eu.voxalot.com to proxy01.eu01.voxalot.com.
- I tried to change the rtp Ausdio port to 80.

Nothing helped.
Please can s.o. look into that matter - please!!
Gooly