After updating both sites to latest firmware 3.46 I’m able to make outbound and intercom calls from site 2 through Sip trunks 402-409.
However from site 1 to site 2 calls don’t go thru.
On the station at site 1 I set hotline keys for extensions 402-409 and when I call these extensions it blinks green for half a second and than announces that this extension is busy.
Any idea what’s causing the call to terminate?