Line Number

This parameter is not configurable, it is allocated by the system.

Card/Module

Indicates the card slot or expansion module being used for the trunk device providing the line. For IP500 V2 control units: 1 to 4 match the slots on the front of the control unit from left to right.  Expansion modules are numbered from 5 upwards, for example trunks on the module in Expansion Port 1 are shown as 5.

Port

Indicates the port on the Card/Module above to which the configuration settings relate.

Network Type

Default = Public.

This option is available when System | Telephony | Telephony | Restrict Network Interconnect  is enabled. It allows you to configure trunks as either Public or Private.

• The IP Office will return number busy indication to any attempt to connect a call on a Private trunk to a Public trunk or the opposite.

• The call restriction includes transfers, forwarding and conference calls.

• Avaya does not recommended use of this feature on IP Office systems using any of the following features:  multi-site networks, VPNremote, application telecommuter mode.

Telephone Number

Used to remember the external telephone number of this line to assist with loop-back testing. For information only.

Incoming Group ID

Default = 0, Range 0 to 99999. The Incoming Group ID to which a line belongs is used to match it to incoming call routes in the system configuration. The matching incoming call route is then used to route incoming calls. The same ID can be used for multiple lines.

Outgoing Group ID

Default = 1. Range 0 to 99999.

When a short code specifies a number to dial, the IP Office will seize an available line from those available with a matching Outgoing Group ID.

In a Server Edition/Select network, the Outgoing Group ID used for lines to a system must be unique within the network.

Reserved Group ID Numbers

• 0 - In a Server Edition/Select network, the ID 0 cannot be used.

• 90000 - 99999 - Reserved for system use (not enforced).

  • 96666 - Use for ACO lines.

  • 98888 - For IP Office deployed in an Enterprise Branch environment, reserved for the SM line.

  • 99001 - 99148 - In a Server Edition/Select network, reserved for the IP Office lines from the primary and secondary servers to each expansion system in the network.

  • 99998 - In a Server Edition/Select network, reserved for the IP Office lines to the secondary server.

  • 99999 - In a Server Edition/Select network, reserved for the IP Office lines to the primary server.

Outgoing Channels

Default = 1 (not changeable)

Voice Channels

Default = 1 (not changeable)

Prefix

Default = Blank

Enter the number to prefix to all incoming numbers for callback. This is useful if all users must dial a prefix to access an outside line. The prefix is automatically placed in front of all incoming numbers so that users can dial the number back.

For outgoing calls: The system does not strip the prefix, therefore any prefixes not suitable for external line presentation should be stripped using short codes.

Line Appearance ID

Default = Auto-assigned. Range = 2 to 9 digits. Allows a number to be assigned to the line to identify it. On phones that support call appearance buttons, a Line Appearance button with the same number will show the status of the line and can be used to answer calls on the line. The line appearance ID must be unique and not match any extension number.

Admin

Default = In Service.  

This field allows a trunk to be taken out of service if required for maintenance or if the trunk is not connected.