Nortel Networks BM450 manual Properties line settings Sheet 1, Trunk mode, Dia l mode

Chapter 4 Software Troubleshooting 41

Figure 10 Properties details panel

Table 8 on page 41 defines the fields on this panel and indicates the lines.

Table 8 Properties line settings (Sheet 1 of 2)

Attribute Value Description

Legend: Loop = analog/digital loop; GS = ground start; DID = DID; E&M = E&M; BRI = BRI; DPNSS

= DPNSS; VoIP = VoIP; TL = Target. Note: PRI fields are all included under the main table.

Trunk mode	Loop
	Unspr		Define whether disconnect supervision, also referred to as loop
	Supervised		supervision, releases an external line when an open switch
			interval (OSI) is detected during a call on that line. You must set
	*Earth calling
			this to Supervised if a loop trunk has its Answer mode set to
	*Loop guarded
			Auto or if you enable Answer with DISA. Disconnect
	*Loop unguarded		supervision is also required to conference two external callers.
	**ROE, ROI		The line must be equipped with disconnect supervision from the
			central office for the Supervised option to work.
			* These listing only appear for UK analog lines.
			** These appear only for Australia.
Dial mode	Loop	GS	DID	E&M
	Pulse		Specify whether the system uses dual tone multifrequency
	Tone		(DTMF) or pulse signaling on the trunk.
			Tone does not appear if Signaling is set to Immediate
			(T1 DID &T1 E&M trunk types only).
Loss package	Loop (analog
	only)
	Short CO		Select the appropriate loss/gain and impedance settings for
	Medium CO		each line.
	Long CO
	Short PBX
	Long PBX
Impedance (Ohms)	Loop (analog
	only)
	600 ohm-900 ohm		The GATM can be set to a specific impedance level.

BCM450 Troubleshooting Guide