Chan_capi & Dialogic Diva TTY

Hi guys,
Is this possible to access Dialogic Diva 4BRI-8 TTY interfaces (/dev/ttyds0x) with chan_capi? Could this be done with a SIP channel if at all? The goal is to answer a modem call via SIP with mgetty configured as Remote Access Server.

Also - can I utilize a Diva board via CAPI when it’s not connected to a PBX?