I am developing a network version of Reservation system. The procedure is as follows :
There are 8-10 CLIENT offices in various places of countries, which is under local DIAL-UP System (without any valid IP address).
If a person wants to reserve something for any of this CLIENT offices, he will contact the central server office (which will place in the CAPITAL CITY OF THE COUNTRY) and will reserve. This central server stores this information. This central server have valid IP address. And my aim is : Server needs to send the booked information to the corresponding client offices system. Due to the non-availability of valid IP address in CLIENT offices, now I am not able to send this information. How we can solve this?
My question is : is there any way of connect all this 8-10 offices under a WAN segment under this central Server office. The main problem is this 8-10 offices are using various ISP service.