New feature sets, including modulation schemes and network management, can be added or changed simply by downloading new modem firmware over the public telephone network. All three models support V.32bis, V.42bis and network management control, allowing them to meet the most demanding network requirements. When line quality begins to deteriorate, the modem first downshifts to lower speeds in an attempt to preserve the communications link. If, at that point, the line quality will not permit reliable data integrity, it will shift to single-call dial backup as a last resort, before the line is completely lost.
Firmware upgrades require no new hardware, no on-site personnel and little or no downtime.
The key advantage of this DNMS is its ability to support call statistics, such as call distribution and duration, which are vital to understanding network utilization and planning for network expansion. All rights reserved.