Yes with the class Modem Card (NT5D60).
On systems equipped with either CNUMB (package 332) or CNAME (package 333), up to 255 CLASS Modem (CMOD) units can be configured in LD 13, and analog (500/2500-type) telephones can be assigned as CLASS telephones in LD 10 by assigning them CNUS, or CNUA and CNAA class of service. See the Software Input/Output: Administration
(553-3001-311) for LD 10 and LD 13 service change instructions.