Polycom RMX 1500 Administrator's Manual page 983

6
In the Connection Name box, enter a Name for the modem connection
(e.g. Modem Connection) and click the Next button.
7
In the Phone Number to Dial box, enter the Phone Number for the
modem and click the Next button.
Polycom RMX 1500/2000/4000 Administrator's Guide
G-13