i want to connect two office(Head office, Branch office) with quintum asm 400. at head office FXS port connect with PBX and FXO port Connect with PSTN connection.
another end (Branch office), 4 FXS port connect with 4 reciver and LAN port connect with HEAD office Quintum Lan Port through VPN connection. in that case how can i configure the two device. please advise me.