Hi, Long time Elastix user here and first time i could not find the solution in the forum On an Elastix 1.6-12 install the only method of making PSTN calls is through a SIP trunk. A number of calls fail with the "all circuits are busy" message. This usually happens if you hangup a call and try to place another immediately after. The call goes through fine after you try 3-4 times. This has happened from at least 2 extensions which otherwise work fine. Thanks in advance for any suggestions.