NEC NDA-24305 - page 237

NDA-24305 CHAPTER 6
Page 219
Revision 1.0
EVENT BASED CCIS - ISDN TRANSPORT
E-23 EVENT BASED CCIS - ISDN TRANSPORT
1. General Description
This feature provides VIRT UAL TIE LINE for each event such as call origination and MCI message
transmission. Inter-PBX link for this feature is established on B-channels of the public ISDN line using CCIS
No. 7 signaling protocol. For addressing a specific terminal, Called Sub Address or Called DID Number is used
depending on the network configuration.
2. Operating Procedure
None.
3. Service Conditions
1. The ISDN Primary Rate Interfac e (PRI) trunk is used for this feature .
2. The following ISDN interfaces are available:
4 ESS
DMS 100
N-ISDN2
3. When using Called Sub Address as addressing information:
(a) channel negotiation and Sub Address-Addressing must be available in the public ISDN network.
(b) different DI D Numbers must be assigned to the ISDN l ine, the E- CCIS line and its alte rnate rout e. For
the E-CCIS line, DID Number is required for each D-channel.
(c) Sub Address assigned to the E-CCIS trunk must be common to both offices.
4. When using Called DID Number as addressing information:
(a) a different DID Number is required for each channel of the E-CCIS line.
(b) when channel negotiation is not available, call termination to an E-CCIS trunk must not be allowed
except when DID Number assigned to the trunk is dialed.
(c) different DID Numbers must be assigned to the ISDN line and the E-CCIS line. For the E-CCIS line,
DID Number is required for each D-channel.
(d) alternate route for the E-C CIS line cannot be assigned.
5. Each trunk for the E-CCIS line cannot be used for the public ISDN line.
6. Each channel used for a E-CCIS line must b e controlled by a single D-channel (i.e. Each channel must be
assigned to a single ISDN line).
7. Billing information on the E-CCIS line does not include Access Code or Converted Number.