| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: when power saving of IP-MFT is attempted, service quality significantly degrades or an additional physical component or the like is required for prevention of the degradation.SOLUTION: By taking power saving of IP-MFT as a part of power saving of the whole PBX system and instructing optimum intermittent operation timing as IP-MFT belonging to each group in addition to every IP-MFT by control of the PBX system, power saving is achieved as the system while preventing degradation of service performance. |
