I have configured Call Through on my Fritz!Box Fon 7050 so that I can dial in with my mobile phone to my landline, Fritz answers the call and I can go on dialing the number I actually want to call via VoIP (which in practice means that the mobile phone will send DTMF tones that will be in turn interpreted by Fritz and sent to the VoIP provider). My problem is that when my mobile phone sends DTMF "+" (as in "+4930...") it is interpreted by Fritz as "0" whereas it should be "00" (it can be seen in Fritz log). This of course causes the call to fail. Any ideas on how I can solve it (on Fritz, since I very much wouldn't like to reprogram all my phone book entries on my mobile)? I am running Freetz in case it matters. Feel free to answer in German.