[Problem] freepbx & Qsc

[atux_null]

Hi. i have a sip trunk with Qsc that i would like to use in my freepbx system. I have managed to register and make outbound calls. The problem is with the incoming calls, that they do not reach the asterisk at all.
For trunk i have:

username=xxxxxxx
type=friend
secret=YYY
pedantic=yes
nat=yes
insecure=very
host=sip.qsc.de
fromdomain=qsc.de
context=from-internal     # this is the context in the extensions.
canreinvite=no
authuser=xxxxxxx

i did create an inbound route for any did/any cid, but the call is not coming to the system

//edit stoney: [CODE]Tag[/CODE] gesetzt

 

[LordLifthill]

We need more information about your network environment.

Is QSC also the carrier of your internet connection?

What Router/Switches are used?

Can you see any messages in the network traffic when you do a tcpdump and then call from external?