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VoIP Gateways Explained
Basic Function of a VoIP Gateway A VoIP gateway provides the interface between the IP telephony network and the conventional public switched telephone network (PSTN). For example, a gateway can be used...
View ArticleWhat is DISA and how is it relevant to SLA?
What is DISA? DISA (Direct Inward System Access) is a mechanism available on some PBX’s that permits inbound calls to be answered and immediately presented with system dial tone. The caller is then...
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How can an Asterisk IP-PBX benefit my business?
In a Nutshell: The benefits of upgrading to an Asterisk based IP-PBX
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TDM
TDM Stands for: Time Division Multiplexed This is one method by which multiple streams of data are combined together into a single stream of data for transmission down a cable or optical fibre. The...
View ArticleE1
E1 E1 is an ITU-T standard that defines the basic protocol and structure for transmission of TDM data over a physical circuit (most often the physical connections use twisted pairs and conform to...
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