I have SX50 with 69 stations, 3 incoming and 4 outgoing lines. For last 2 years i been using telco lines for all incomming calls and the all 4 outgoing trunks are conneced to 2 Sipura 2000
using 4 Voipdiscount sip accounts. This combination worked fine. Just a note that the call quality is not my main priority because for all US and Canada calls were free.
Now I want to use Blackjack adapter because it will be cheaper and it provides 911 and call forwarding (to my main incoming number). So i disconnected one line out of Sipura and connected to Majicjack (connected to running desktop with cable highspeed internet service).
Now when i test this trunk from console, using function 19 and trunk number (71), it gives me busy tone eventhough majicjack has dialtone and can call out from computer fine with good dialtone and good call quality.

What settings i have to change in trunk equipment programming for this to work. (if i connect back to sipura that trunk works flawlessly.

Please help.

Thanks in advance.