I have configured the "Free" version of 3CX for testing purposes and have a working VOIP connection. However, when I attempt to make or receive calls using the SPA3000 PSTN Gateway the calls time out. Both connections, VOIP and PSTN show "active" in the management console as well as the 3CX Softphone extension, but I am unable to make or receive any PSTN calls. I have looked for "tweaks" in this forum that might be relevent, but none have resolved the issue. Any thoughts, suggestions would be appreciated.
Thanks, in advance and best regards,