we have CCM 4.x and CP-7960G phones are EoS. So we would like to buy new model CP-7975G.
I have heard we have to use an Add-on supporting 7975G on CCM 4.x.
I want to be sure about RTU/license we have to buy with the 7975G phone.
in price list isnt price for CP-7975G-CH1, so it is littke bit confusing to me.
Can anybode help?