Hi! I've a 3CX Softphone4 and a Snom300 on my desk. Both are ringing when a call comes in. All internal calls can be accepted from both: softphone or snom, everything works well. When an external call comes in also both phones are ringing but when I answer with the softphone I can't hear anything --- I need to answer with the snom... How can I solve this problem? Thanks for your help!