1) Please post a link to your installation method.
2) May not be a bad idea to post your original and upgraded Vicidial versions if you have them in case anything weird comes up from that specific upgrade path (and it's easier to keep it here than anywhere else)
3) Presently all your inbound calls arrive and are likely routed to "trunkinbound" by the sip account entry "context=trunkinbound". But you *could* create a custom diaplan entry (in system settings) for "customtrunkinbound" and change your sip accounts to point there instead. Then you can bounce all calls to a new inbound extension preceded by 61 IF they don't arrive on one that is already 61. Copy the existing [trunkinbound] from extensions.conf to begin your quest and test a few inbound dials.
4) Putting it in system settings instead of extensions.conf allows your next upgrade to NOT break this by overwriting it.
5) You could also look at the previous extensions.conf file to see if the previous [trunkinbound] has what you need. Since of course you have a backup of the entire /etc/asterisk folder ... right ?