DASS2
Digital Access Signalling System 2 (DASS2) is an obsolescent protocol defined by British Telecom for digital links to PSTN based on ISDN. Although still available on request, it has been superseded by ETS 300 102 ("EuroISDN"). DASS2 is an improved version over DASS1, based on experiences with DPNSS. The CCITT specify the standards for the layer 1, layer 2 and layer 3 signallingmessages. The layer 3 messages are the messages that actually control the callsetup, teardown, and routing.
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DASS2
Digital Access Signalling System 2 (DASS2) is an obsolescent protocol defined by British Telecom for digital links to PSTN based on ISDN. Although still available on request, it has been superseded by ETS 300 102 ("EuroISDN"). DASS2 is an improved version over DASS1, based on experiences with DPNSS. The CCITT specify the standards for the layer 1, layer 2 and layer 3 signallingmessages. The layer 3 messages are the messages that actually control the callsetup, teardown, and routing.
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Digital Access Signalling Syst ...... ree of layer 3 implementation.
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492.982.632
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Digital Access Signalling Syst ...... lsetup, teardown, and routing.
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DASS2
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