I have a main office (A) with 40 Mbps ADSL internet line and one branch office (b) with 512 kbps internet line in UAE and one office in saudi with 512 kpbs internet line
office (b) cannot upgrade the internet speed because of the service provider but can use 3g USB dongle internet
presently we have two draytek router in office A and B and using the DYNDNS service we have established a site to site vpn to access file across and access software based and webbased ERP from Main office .The accessiblity is a diaster.
from the ISP side only option i have is to go for 3G USb with 7.2 Mbps internet line
just upgrading the internet line with boost the speed with the same draytek 2820 router vpn or we have to choose any other router like cisco,sonic wall or fortigate
please suggest a suitable solution with 40Mbps ADSL (DHCP Ipaddress) and 7.2 Mbps 3G usb modem where i have a descent access on the file and software