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NEAX2000 IVS
2
ISDN System Manual
Page 20 ND-70919 (E), Issue 1.0
CHAPTER 1 GENERAL INFORMATION
Outline of Event Based CCIS
Event Based CCIS Service Conditions
• Event Based CCIS connection is available between NEC NEAX PBXs.
• The maximum number of the virtual tie lines is 16 channels per one system, including both
common signaling channels and voice channels.
• This feature supports voice calls only. Supported objects at PBX transmission side: single
line telephone, D
term
, DID/E&M/Ring Down (analog/T1/E1) tandem calls.
• The data calls are transmitted via the regular ISDN network.
• The number of originating calls from the ISDN trunk is counted as Peg Count when using
the ISDN line for the virtual tie line by route basis.
• Billing information of the virtual tie line using the ISDN line can be treated as regular tie line
calls.
• Billing information of the virtual tie line using the ISDN line can be treated on tandem calls.
• The voice channel of the virtual tie line is released after the call is finished.
The common signaling channel of virtual tie line is released after all calls on voice channels
are finished. The release timer is determined by system timer programming for the voice
channels and the common signaling channels.
• The ISDN line used for the virtual tie line can also be used as a regular ISDN line.
The trunk route used for the virtual tie line can be distinguished from the regular ISDN line
by assigning different LCR data in system programming.