Interfacing PC sound card to mobile Phone

[sdewinda]

I need to connect mobile phone speaker out to PC mic in PC
and PCs speaker out to phones mic to establich bothway communication bitween SIP phone and mobile phone.

I m trying to foward SIP phone (soft phone) call to my mobile phone

Im using Nokia N70

I m not sure about input and output impedances and voltages of these.
whether thay match or not.

If you have some experiance of this please advice me

 

[MikeMl]

Ham Radio enthusiasts do this all the time when interfacing their transceivers to computers to engage in various digital modes. There is a variety of DIY info out there like this, or there are lots of commercial products, too.