How many devices can be attached to one of the 3C882 ISDN modems analog phone ports?
On each analog port, you can connect up to 3 analog devices (telephone, fax, analog modem) within 200 feet using an RJ-11 splitter. Although you can connect multiple devices to each port, you can place only one phone call per port at a time. Some devices such as speaker phones require more power, thus reducing the number of devices that can be simultaneously connected to the analog voice port.