Telos NX12 user manual Specifications

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	Status Screen for ISDN troubleshooting.	77
	Condition: Can’t Get ISDN Ready Indication	. . . . . 78
	Condition: System says Ready but attempted calls do not complete .	79
	Condition: Intermittent ISDN Problems .	80
	6.5 Troubleshooting Desktop Director Problems .	81
	6.6 Replaceable Modules and Hardware Servicing.	81
	6.7 ISDN Cause Phrases/Values	. . . . . 82
	CLASS 1.1 (normal).	82
	CLASS 1.2 (resource unavailable) .	84
	CLASS 1.3 (service or option not available)	. . . . . 85
	CLASS 1.4 (service or option not implemented)	. . . . . 86
	CLASS 1.5 (invalid message; e.g. parameter out of range) .	87
	CLASS 1.6 (protocol error; e.g. unknown message).	87
	CLASS 1.7 (interworking class) .	89
7	Specifications	91
	General	. . . . . 91
	Processing Functions	. . . . . 91
	Audio .	92
	Audio Performance.	92
	Switching Matrix and Conferencing.	93
	ISDN Telephone Line Connectivity	. . . . . 93
	Analog Telephone Line Connectivity	. . . . . 93
	Desktop Director Ports	. . . . . 93
	Control Ports .	93
	Two-Studio Modes	. . . . . 94
	Four-Column/Four-Hybrid Mode.	94
	“Euro” Operation Mode	. . . . . 94
8	Warranty and Application Caution	97
A1	USA SPIDs by Telco	99
A2	Telephone Terminology Guide	103