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What's the difference between an analog VoIP gateway and a digital VoIP gateway?
I understand that there are two main types of VoIP gateways- digital and analog. What are the differences? Does the type of VoIP gateway used depend on the type of phone system it is connecting to?
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2 Answers
Yes, Digital for a digital network and analogue for an analogue one...
Shall I state anything else absolutely obvious ;-)
Digital will refer to an ISDN or similar (e.g. pre-ETSI ISDN VN3, 1TR6, DPNSS, DASSII) network
Analogue will refer to either FXO/FXS (two pair analogue line or an analogue E1/T1 system like CAS..
BR
G
a "VoIP gateway" is like a language translator. You have an IP connection; you have a pbx with an analog connection or a digital connection. analog gateway has an analog connection for you pbx, and an Ethernet connection and converts analog signal to IP packets for transmission.
substitute the word digital for analog in the above sentence for the next definition.
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