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5: S
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ONFIGURATION
Table 55 System Settings System-wide Dialog Box Fields (continued)
Field
Network Protocol
Extensions Start at
External Prefix
Caller ID Wait
Timer
Auto Add Phones
to Call Pickup
Group 0
Purpose
The transport mechanism for voice packets.
Ethernet only: All communications are at the Ethernet frame
layer.
Standard IP: IP communications are used for traffic between
NBX system addresses.
NOTE: Every device needs an IP address.
IP communications are optional features of the NBX system
and require separate licensing.
IP On-the-Fly: An implementation of IP communications in
which Layer 2 (Ethernet) devices are temporarily assigned a
Layer 3 (IP) address only when they need to communicate with
a Layer 3 device on a different subnetwork. The IP address is
assigned from an address pool defined by the NBX system
administrator. After the Layer 2 device returns to the idle state
the IP address is returned to the pool of available addresses for
future use.
If you have the appropriate license and select IP On-the-Fly in
the Network Protocol list, you must return to the Current
System Settings window, select IP Addresses and add the
IP addresses associated with IP-on-the-Fly. There may be
unpredictable results in other system functions if you have
Network Protocol set to IP-on-the-Fly but do not have any
IP telephones or addresses.
The starting extension number used by Auto Discover
Telephones.
You may select any unused telephone number extension from
these ranges:
NBX 100:
3-digit dial plan — 100–449
4-digit dial plan — 1000–4949
SuperStack 3 NBX:
3-digit dial plan — 100–399
4-digit dial plan — 1000–3999
The prefix required for an outside line.
Amount of time to wait for receiving Caller ID information.
When selected, this adds telephones to the default Call Pickup
Group 0 (zero) when telephones are added to the system. Turn
this ON before Auto Discovering telephones if you want the
telephones to appear in Call Pickup Group 0.