The function of the private line eliminates the possibility of someone other than you reviewing your call details, from phone sets, which have the shared extension, additionally no one can monitor your call or connect to you call.
Billing Solution... solved!
Fusion is a simple yet robust, integrated, web-based billing and point-of-sale system for the small and medium-sized telecom business. It provides users with access to customer accounts, retail point-of-sale, customer invoicin