Nortel Networks 1000 - Manual (Page 264)

264 NT5D33 and NT5D34 Lineside E1 Interface cards
ELEI additional functionality
As mentioned earlier, ELEI cards are enhanced to allow CAS+
compliance, as shown in
Figure 57 "CAS+ compliance" (page 264) . This
enhancement provides several additional benefits for systems with ELEI
cards installed.
Note: MDECTS and ELEI (operating in enhanced mode) cannot be
configured on the same system.
Figure 57
CAS+ compliance
Key Benefits of using CAS+ signaling (ELEI mode) over traditional A/B bit
signaling (LEI mode) include:
1. Calling Line ID Presentation (CLIP)
When an incoming call over the TDM/IP network or a CS
1000originated call is directed towards the CAS+ compliant system,
Calling Line ID can be provided over the CAS+ interface. This is
assuming that the incoming call has the CLID without any presentation
restrictions.
2. Redirecting Line ID Presentation (RLIP)
When an incoming call over the TDM/IP network or a CS
1000originated call which has undergone redirections is directed
towards the CAS+ compliant system, Redirecting Line ID can be
provided over the CAS+ interface. This is assuming that the incoming
call has the Redirecting Line ID without any presentation restrictions.
3. Message waiting indication (MWI)
Message waiting indication can be provided over the CAS+ interface.
Electrical specifications
Table 98 "LEI card - line interface unit electrical characteristics" (page
265)
provides a technical summary of the E1 line interface. Table 99 "LEI
card - power required" (page 265) lists the maximum power consumed
by the card.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.