NEC Univerge SV9100, General Description Manual

Page: 105 / 190

Issue 2.0
SV9100 General Description Manual 2-67
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Virtual Private Network (VPN)
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Quality of Service (QOS)
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Firewall
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Services Management
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4-Port Gigabit Ethernet Switch
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Web-based administration
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The GCD-RGA is also an Application Server blade that supports the RGA
Conference application. Refer to the RGA Conference feature for more information.
Ringdown Extension, Internal/External
With a Ringdown Extension, a user can call another extension, outside number, or
Speed Dialing number by lifting the handset. The call automatically goes
through – there is no need for the user to dial digits or press additional keys.
Ringdown Extensions are frequently used for lobby telephones, where the caller lifts
the handset to get the information desk or off-site Reservation Desk.
After the Ringdown Extension user lifts the handset, ringdown occurs after a
programmable interval. Depending on the setting of this interval, the extension user
may be able to place other calls before the ringdown goes through.
Ring Groups
Ring Groups determine how trunks ring extensions. Generally, trunks ring extensions
only if Ring Group programming allows. For example, to make a trunk ring an
extension:
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Assign the trunk and the extension to the same Ring Group.
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In the extension Ring Group programming, assign ringing for the trunk.
Any number of extensions and trunks can be in a specific group.
The system allows:
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Ring Groups = 1~100
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In-Skin Voice Mail = 102
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Centralized Voice Mail = 103
If an extension has a line key for the trunk, Ring Group calls ring the line key. If the
extension does not have a line key, the trunk rings the line appearance key. If an
extension has a key for a trunk that is not in its ring group, the trunk follows Access
Map programming.