Call Transfer - Bad Request - with Fritz!Box 4790

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Hello, 

I don't know much about the configuration, so sorry if my question is stupid. 


I use zoiper on  a fritz!box 4790 and if I get an external call and use the transfer function to transfer the call to e.g. connected DECT phone or analogous phone I get the message bad request. 

Earlier I used another softphone and this function worked well. 

Thanks for your effords,

asked Feb 7 in Windows by scheinhardt (120 points)  
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1 Answer

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Hello,

As I am aware the almost all FritzBox! devices do not support call transfers, the ones that does, I believe require DTMF tone based transferring. The standard one which Zoiper is using ( with SIP "REFER" method) will not work.
answered Feb 7 by Tsetso.Zdravkov (24,260 points)  
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