I have a dx80 in use office for teleconference, there is need for me to take this home but have to maintain my 4 digit office extension . How do I make this work without using the embedded VPN resources in dx80. I really don't know much about my home ASA 5505 apart from configuring as my firewall. I understand there is a way ASA can be programed to automatically connect to my office through VPN connection which will always make my dx80 4-digit extension useable. is there something like hardware VPN?