A group of users can be created with a purpose of receiving voice announcements through the speaker of a telephone set, but it has to be in the waiting mode.
Zamir Telecom is one of Bangladesh`s most promising VOIP solutions provider of the present time. Zamir Telecom Ltd is the only VOIP termination provider to make way in Telehouse Europe Data centre at North Tower Docklands London UK. With 24/7 expert level
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