Line Number

Default = Auto-filled. Range = 1 to 249 (IP500 V2)/349 (Server Edition).

Enter the line number that you wish. Note that this must be unique. On IP500 V2 systems, line numbers 1 to 16 are reserved for internal hardware.

Telephone Number

Used to remember the telephone number of this line. For information only.

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.

Prefix

Default = Blank.

The prefix is used in the following ways:

• For incoming calls The ISDN messaging tags indicates the call type (National, International or Unknown). If the call type is unknown, then the number in the Prefix field is added to the ICLID.

• For outgoing calls The prefix is not stripped, therefore any prefixes not suitable for external line presentation should be stripped using short codes.  

National Prefix

Default = 0

This indicates the digits to be prefixed to a incoming national call. When a number is presented from ISDN as a "national number" this prefix is added. For example 1923000000 is converted to 01923000000.

International Prefix

Default = 00

This indicates the digits to be prefixed to an incoming international call. When a number is presented from ISDN as an "international number" this prefix is added. For example 441923000000 is converted to 00441923000000.

Location

Default = Cloud.

You can set Location values for the IP Office system and for individual extensions and lines. Associating a line with a location:

• Applies the location's call admission control (CAC) settings to the line

• For SIP lines that support RFC4119/RFC5139, emergency calls using the line can include the location's address information.

Description

Default = Blank. Maximum 31 characters.

You can use this field to enter a description for the configuration entry. The description is not used elsewhere.

Send original calling party for forwarded and twinning calls

Default = Off.

Use the original calling party ID when forwarding calls or routing twinned calls.

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.

Number of Channels

Default = 20, Range 1 to 250.

Defines the number of operational channels that are available on this line.

Outgoing Channels

Default = 20, Range 0 to 250.

This defines the number of channels available, on this line, for outgoing calls. This should normally be the same as Number of Channels field, but can be reduced to ensure incoming calls cannot be blocked by outgoing calls.

TEI

Default = 0. Range = 0 to 127.

The Terminal Equipment Identifier. Used to identify each Control Unit connected to a particular ISDN line. For Point to Point lines this is typically (always) 0. It can also be 0 on a Point to Multi-Point line, however if multiple devices are actually sharing a Point to Multi-Point line it should be set to 127 which will result in the exchange deciding on the TEI's to be used by this Control Unit.