User guide

Page 77
System Hardware
Inter-Tel
®
Axxess
®
Administrator Guide — Issue 11.0, May 2008
Inter-Tel Endpoints
System software will support any configuration of station instruments with the limitation that
there must be a minimum of one Keyset Card. The actual configuration is defined by the type
of cards and the number of circuits in use on the system. The following list explains the func-
tion of the various Keyset Cards.
• Digital Keyset Card (DKSC, DKSC-16, DKSC-16+): Provides eight or 16 circuits for
connecting digital display and non-display endpoints. Digital Keyset Card circuits can
be equipped with a Single Line Adapter (SLA) and programmed to support two single-
line sets (instead of an Inter-Tel endpoint).
• Analog Keyset Card (AKSC)/Executone Keyset Card (EKSC): Provides up to 12
circuits for connecting GMX and IMX Analog endpoints, Executone IDS endpoints,
and Executone Wave endpoints and devices to the system.
• Single Line Card (SLC, SLC-16, or SLC-16+): Provides eight or 16 circuits for con-
necting on-premises AC ringing single-line DTMF sets and playback devices. The
SLC-16+ is available for software versions 8.2 and later.
• Internet Protocol Card (IPC): Supports up to eight IP SoftPhone devices. The IPC
provides the functionality that is required to make telephone calls through the IP net-
work using the telephone system.
• Internet Protocol Resource Card (IPRC): Supports up to 32 (v8.1 and later) IP/SIP
devices. The IPRC provides the functionality that is required to make telephone calls
through the IP network using the telephone system and IP endpoints. Version 9.0 sys-
tem software and later supports both private networking and IP devices on one IPRC.
Using this functionality, one IPRC provides sufficient resources for both the IP end-
points and IP networking. The IPRC cannot be installed behind a firewall or Network
Address Translation (NAT).
• Enhanced IPRCs: The IPRC “enhanced” daughter card offers new technology for echo
cancellation on all calls routed through the IPRC. When the enhanced daughter card is
installed and programmed, the new technology on the daughter card replaces the echo
cancellers on the IPRC, resulting in improved echo cancellation. There are two types of
enhanced daughter cards available:
— IPRC-DE (Daughter Enhanced): Provides new echo cancellation technology.
— IPRC16-DE: Provides new echo cancellation technology with the Digital Signal
Processor (DSP) circuitry for up to 16 additional Voice Over Internet Protocol
(VoIP) channels.
INTER-TEL ENDPOINTS
The features supported by Inter-Tel digital and analog endpoints are described in the following
paragraphs.
NOTE: Throughout this guide, the term “Inter-Tel endpoint” refers to full-feature endpoints
manufactured and sold by Inter-Tel. The term does not apply to industry-standard single-line
DTMF sets.