In the old times all sms were transport of the tcap layer in ss7 stack. Tcap was reliable non flow controlled protocol with no way to handle the extra traffic(carriers just used 64kb trunk line) by all the new kids…
In the old times all sms were transport of the tcap layer in ss7 stack. Tcap was reliable non flow controlled protocol with no way to handle the extra traffic(carriers just used 64kb trunk line) by all the new kids…