Comdial FX Series Spezifikationen Seite 138

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S
Save Button Dial Storage
A user can dial digits and save them while on a call, which is useful should the distant party tell the
user of a number to call and the user wishes to save that number for later redial.
Saved Number Redial
Refer to the paragraph titled Dynamic Save Button.
SCbus Interface Support
Beginning with Feature Set 15A, Release 170, the software supports the Signal Computer System
Architecture (SCSA) protocol. SCSA is a standard that specifies the signal processing system for
PC-based voice and call processing, and telecom switching. An SCbus is a standard bus for
communications within an SCSA node. The SCbus features an architecture that includes a serial
message path for signaling and control and a 16-wire parallel Time Division Multiplexing (TDM)
data path.
An integral part of the feature is the SCbus interface board. This board connects Computer
Telephony Interface (CTI) applications that reside on one or more SCbus compatible circuit boards
in the FXS’s computer portion (for example; network, voice, facsimile, speech recognition, video,
and so forth) to digital station or line ports installed in the FXS’s telephony portion through the
SCSA protocol. The conversion of a CTI application from traditional analog ports to digital SCbus
ports provides a more effective and efficient operation.
The SCbus board translates the CTI application’s Application Programming Interface (API), which
requests and carries out basic services performed by the computer and telephony portions of the
system, to an API that the FXS system supports. Typical API requested services include call control
services such as these following items: receive ring events, off- and on-hook, hookflash, dial digits,
and so forth. The SCbus interface board mounts in any universal board slot in telephony portion on
an Impact FXS system and cable connects to the CTI application board that is plugged onto the
passive backplane in the computer portion of the FXS system. The internal cable connection
between the SCbus board and the CTI application board routes the voice-path signaling between the
two locations. In addition to this internal cable, the installation requires external cabling between the
system’s computer and telephony portions. The particular external cabling required is dependent
upon the CTI application being operated.
An SCbus installation includes the following items:
SCbus Interface Board (product code FXSCBUS),
SCbus Application Board or Boards (as needed),
SCbus Application Software Disk or Disks (as needed),
Enterprise ToolKit Software (product code ENTRP-SW, release 6A or later).
134 – Understanding the Features
GCA40–242 General Description
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