I configured SPA9000 with PSTN gateway SPA400. I can make inside calls and also I can receive inbound calls from PSTN, but I cannot make outbound calls to PSTN....always when I reboot SPA400 I can make only one outbound call to PSTN. If I would like to make another outbound call later I cannot...there is busy tone. Then I need to reboot SPA400. I tried to change the version of firmware in SPA400 and also in SPA9000 but without success.
I am located in Slovakia, so I used localization for Germany.....like dial patterns, tone settings and so.
Please, can you help me?