Nortel SRG50, Руководство по настройке

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Chapter 5 Setting up IP telephones 73
Survivable Remote Gateway 50 Configuration Guide
Features in local mode
In local mode, IP telephones at the SRG50 no longer have access to the full suite of main office
applications. However, the SRG50 does provide a set of features that include connectivity with the
local PSTN, access to Emergency Services, and the ability to call local extensions.
The SRG also supports the following features in local mode:
• Hold
• Transfer (dedicated key on the 2002, 2004, and 2007 models)
• Call Forward No Answer/Busy (if the feature has been enabled on the DN:
C
onfiguration > Telephony > Sets > All DNs )
• Last Number Redial (dedicated key on the 2002/2004 models)
• Inbox Key (on 2002/2004 models)
The user experience in local mode can be enhanced if certain global feature settings are
coordinated with the main office so that the settings are the same at both the main office and the
SRG50. These feature settings are configured with the
Feature Settings panel on the SRG50
Element Manager interface ( Configuration > Telephony > Global settings > Feature Settings ).
Feature settings that can be coordinated with the main office are:
• Background music ( if it is provided for on-hold)
• On-hold
This determines if a caller on hold hears tones, music, or nothing.
• Receiver volume
Set to use the system volume, since IP users cannot use the feature code to set a
default telephone volume.
• Delayed ring transfer
If a transfer to an external number is not answered, you can indicate if the call will be
dropped (Off) or transferred to the designated Prime telephone.
Check the Transfer callback timeout . This setting defaults to After 4 rings . If you
are using the Delayed ring transfer feature, turn Transfer callback timeout off if
you want all unanswered transferred calls to ring at the Prime set (usually the system
attendant). If you want the transferred call to ring at the telephone from which it was
transferred first, set this field to a setting that is less than the setting for
Delayed ring
transfer .
• Held line reminder
If set to a time, determines period between when a call is put on hold and when a short
tone sounds at the telephone to indicate the call is still on hold.
• Alarm set
Enter a DN to a two-line analog telephone, since the IP telephones will not be able to
access the alarms, or set to
None if you do not want to use an alarm set on the system.
• Language and Contrast
Language and Contrast are DN-specific settings and are configured at Configuration
> Telephony > Sets > All DNs > All DNs panel > Capabilities and Preferences tab
> Details for DN subpanel > Preferences tab.