Allows users tracking the condition of the other telephone or the subscriber, for example, there will appear a signal on the screen of the telephone device informing that the subscriber is on the line and is temporarily unavailable.
Maxtel Communications Pte. Ltd.
Maxtel Communications Pte Ltd is a provider of telecommunication carrier services, equipment distributor and an integrated solution provider with specialist knowledge in IP telephony - VoIP, TDM Wireless communication. Core of our business is based on who
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