RAD Data comm Vmux-210 Specifications Page 27

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Installation and Operation Manual Chapter 1 Introduction
Vmux-210 Ver. 1.1 Functional Description 1-9
Figure 1-9. Vmux-210 Block Diagram: Router Disabled
Voice Interface
The voice interface includes 12, 15, 24, or 30 FXS analog voice ports that connect
to POTS or faxes.
Signaling
Signaling information is processed according to the CAS signaling mode.
Analog ports translate the physical signal to ABCD bits. The user configures this
translation, for example, the user may define the value “1101” to indicate
“ONHOOK”.
Compression
The DSPs handle the voice traffic by compressing it according to G.723.1 (6.4 or
5.3 kbps) and G.729 A (8 kbps), or digitizes it according to the G.711
requirements (A-law and μ-law). Compression methods are user-selectable.
G.711 A-law and μ-law configuration must be the same on both the local and
remote devices.
Voice Activity Detection, Silence Suppression, and Comfort Noise generation are
applied for all coder rates, including G.711.
All bundles must be configured with the same coder rate.
Note
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