Hi,after a full day of troubleshouting I could narrow down the problem to the firewall reacting "stupid" to the lots of small UDP packets.I was only able to solve it by disabling the firewall completely "service firewall stop" .Before nothing worked ...
Try to add the following command to your Exchange "dial-peer" config : incoming called-number . (dont forget the point)Mine looks like this:dial-peer voice xxxx voip description *****Exchange 2010 AA***** destination-pattern xxx b2bua sessio...
