IS-11572 (LAYER 3 SPECIFICATIONS FOR INTER-PBX SIGNALING PROTOCOL)
3. Connectivity
IS-11572 is available for the following connection and interworking with the other networks.
Note that connection test is required when the NEC's PBX and other manufacturer's PBX coexists in an
IS-11572 network.
Analog C.O. Line
ISDN
IS-11572
Network
NEC
IS-11572
ACIS
Existing Office
CCIS
Other Manufacturer
Existing Office
NDA-24305
CHAPTER 6
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Revision 1.0