I have 3 sites, HQ and 2 remote sites. CMs (v6) are deployed at HQ and SRST is deployed at the remote sites.
All PSTN links come into the HQ and calls are sent over the WAN.
if/when the WAN goes down and SRST kicks in and remote sites use local pstn link for outbound calls.
When the WAN goes down how do we get all calls destined for the remote sites (mixture of phones and route points) into the remote sites using the Backup PSTN link at the remote side?, We can't use Call forward un registered as all sites use EM