help me i want to start callingcard service in one of country
so what i should do now ? and what configuration iwill need to do servers basically want to using asterisk so how is possible
and what time required is there anyone can give us design diagram and costing we can purchase asterisk server on rent from datacenter
but need to clear flow about DID not much know but how it will work whole process with diagram anyone could explain ?
and anyone can setup it for us ?
how much cost it will and time ?