Ccis And Isdn - NEC NEAX 2000 IPS Reference Manual

Common Channel Interoffice Signaling
Common Channel Interoffice Signaling
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CCIS uses a common channel to provide the signaling information between two
Signaling
systems (nodes). The information transmitted in the signaling channel between two
systems includes addressing information, supervisory information, and centralized
network information. This signaling information is to be transmitted between all
network nodes for a fully integrated network.
This information includes dialed digits (called number) and calling party
Addressing
identification. CCIS provides the ability to provide calling number identification or
the name of the calling party to any display station across the network. Users can
Information
screen calls by looking at the display prior to answering the call.
Supervisory
This information includes station status, call set up and termination information.
Information
Network
This information includes centralized billing information, system fault data
messages, message waiting indication control information, voice processing
Information
integration information, and data related to other network feature control.

CCIS and ISDN

Since the first CCIS system was installed in 1985, CCIS has proven to be the most reliable and
versatile proprietary network system available. The delays in achieving nation wide ISDN
compatibility, and the fact that a total global ISDN network is not yet available, exemplify the
true values of an intelligent proprietary CCIS network. Additionally, it is easy to understand that
a global network that only needs to be compatible with one family of telecommunications
products can easily offer much more feature transparency and centralization than a global
network that is intended to be compatible with all telecommunications systems. For this reason
alone, the benefits of a CCIS network are much greater than those of an ISDN network. And
with CCIS, it is possible to create a mixed network of CCIS and ISDN.
NEAX 2000 IPS Request For Proposal (RFP) Reference Guide
NDA-24349, Issue 4
(1) 64 Kbps D Channel
(1) 64 Kbps D Channel
(23) - 64 Kbps Clear Channel Bearer Channels
(23) - 64 Kbps Clear Channel Bearer Channels
Chapter 14 Common Channel Inter-Office Signaling (CCIS)
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