Gday all, so with the above combo, we cannot pickup calls on the Jabra Pro 9450, revert back to firmware on T46G phone to 126.96.36.199 and the jabra picks up fine. 3cx is latest version (15.5 sp2) No custom templates. If we bypass the exp40 jabra pro works (so ehs straight into ext port), if we piggy back through the EXP40 no go. If we revert to 188.8.131.52 on T46G no issues. With new firmware Jabra shows green light on headset base phone icon to indicate it has recieved the pickup signal from the wireless headset. What gives?