Hi there. I experience some delay in the talking with the other party. It is only when the other party is external. I noticed it with several people so it is my problem here. When I speak they hear it a second later. Quality of the sound is good but the delay is not nice. It is not an echo or something. please tell me what to change. I use an SPA962 with this 3CX software i allready checked the box for bind with mediaserver and external. unchecking it made no difference. The strange thing is when I put my SPA962 directly on the internet without the 3CX software ande handling its own lines, there is no problem with delay. Only when the 3CX is between the phone and the other phone there are delays.