How can I span VPN Traffic to Record Calls with an on-prem recording server?

Hi

We have some users at home using IP Phones.

These IP Phones connect back to the office with VPN and are assigned static IP addresses on the VPN subnet.

Phone conversations are recorded by use of SPAN ports/vlan sending traffic to the recording server.

Is it possible to also SPAN the VPN subnet so that the on-prem recording system can capture the calls?

(Cisco IP Phone->VPN TUNNEL->Cisco ASA->Cisco Switch->Recording server)