How to connect panasonic kx-tda200 with grandstream
Please tell me if there is any way to connect Panasonic kx-tda200 with Grandstream ucm6208
via DHLC card or something else.I know that it is possible buy a (Panasonic KX-TDE0101 IPCMPR Main Processor Card TDE100/200) card, but it costs $ 500, which is expensive for me ((((