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.

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.

Transport Type

Default = Proprietary.

The options are

• Proprietary: The default connection type when connecting two IP Office systems.

• WebSocket Client / Websocket Server: A WebSocket connection is an HTTP / HTTPS initiated TCP pipe through which Call signalling and Network Signaling is tunneled. This transport type is used to connect IP Office systems through the cloud.

  Selecting one of the WebSocket options enables the Security field and the Password fields.

Networking Level

Default = SCN.

The options are

• None: No supplementary services are supported.

• SCN: This option is used to link IP Office system within a multi-site network. The systems within a multi-site network automatically exchange information about users and extensions, allowing remote users to be called without any additional configuration on the local system.

Security

Default = Unsecured.

The Security field is available when Transport Type is set to WebSocket Client or WebSocket Server.

The options are

• Unsecured : The connection uses HTTP/TCP.

• Medium: The connection uses HTTPS/TLS.

• High: The connection uses HTTPS/TLS. The server certificate store must contain the client identity certificate.

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.

Include location specific information

Default = Off.

Enabled when Network Type is set to Private. Set to On if the PBX on the other end of the trunk is toll compliant.

Telephone Number

Default = Blank.

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

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.  

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; 1 to 500 for Select systems.

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

Outgoing Channels

Default = 20, Range 0 to 250; 0 to 500 for Select systems.

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.

Address

Default = Blank.

Enter the IP address of the gateway device at the remote end. This address must not be shared by any other IP line (H.323, SIP, SES or IP DECT).

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.

Password

Confirm Password

Default = Blank.

The Password field is enabled when Transport Type is set to WebSocket Server or WebSocket Client.

WebSockets are bi-directional HTTP or HTTPS communication pipes initiated from a client to a server. They permit clients behind local a firewall to traverse the internet to a server by using well known ports and protocols. A matching password must be set at each end of the line.

Port

When Transport Type is set to Proprietary, the default port is 1720 and cannot be changed.

When Transport Type is set to WebSocket Client, the default port is 80.

The Port field is not available when Transport Type is set to WebSocket Server. The HTTP and HTTPS receive ports are defined at the system level in the security settings System Details tab.

Supports Resiliency

Default = Off.

These fields are available when Networking Level is set to SCN. When selected, all the available options are defaulted to On.

Backs up my IP Phones

Default = Off.

When selected, the local system shares information about the registered phones and users on those phones with the backup system. If the local system is no longer visible to the phones, the phones will reregister with the backup system. When phones have registered with the backup system, they show an R on their display.

Note that while IP Office line settings are mergeable, changed to this setting require the IP phones to be restarted in order to become aware of the change in their failover destination.

If the setting System Settings > System > Telephony > Phone Failback is set to Automatic, and the phone’s primary server has been up for more than 10 minutes, the backup system causes idle phones to perform a failback recovery to the original system.

If using resilience backup to support Avaya IP phones, Auto-create Extn and Auto-create User should not be left enabled after initial configuration or any subsequent addition of new extensions and users. Leaving auto-create options enabled on a system that is a failover target may cause duplicate extension/user records on the multi-site network under multiple failure scenarios.

Backs up my Hunt Groups

Default = Off.

This option is available only on the IP Office Line connecting the Server Edition Primary server to the Server Edition Secondary server.

When selected, any hunt groups the local system is advertising to the network are advertised from the backup system when fallback is required. The trigger for this occurring is phones registered with the local system registering with the backup system, ie. Backs up my IP Phones above must also be enabled.

When used, the only hunt group members that will be available are as follows:

• If the group was a distributed hunt group, those members who were remote members on other systems are still visible within the network.

• Any local members who have hot desked to another system still visible within the network.

When the local system becomes visible to the backup system again, the groups will return to be advertised from the local system.

Backs up my Voicemail

Default = Off.

This option can be used if the local system is hosting the Voicemail Pro server being used by the network. If selected, when the local system is no longer visible to the voicemail server, the backup system acts as host for the voicemail server. In a Server Edition network, this option is only available on the H.323 trunk from the Primary Server to the Secondary Server. It is assumed to be on and is automatically set by the Resilience Administration tool.

The option requires the backup system to have licenses for the Voicemail Pro features that are required to operate during any fallback period.

Backs up my IP DECT Phones

Default = Off.

This option is used for Avaya IP DECT phones registered with the system. When selected, it will share information about the registered phones and users on those phones with the backup system.

If the local system is no longer visible to the phones, the phones will reregister with the backup system. The users who were currently on those phones will appear on the backup system as if they had hot desked. Note that when the local system is restored to the network, the phones will not automatically re-register with it. A phone reset via either a phone power cycle or using the System Status Application is required. When phones have registered with the backup system, they will show an R on their display.

Backs up my one-X Portal

Default = Off.

This option is available on Server Edition Select deployments and only on the IP Office Line connecting the Server Edition Primary server to the Server Edition Secondary server.

When set to On, this setting enables one-X Portal resiliency and turns on the backup one-X Portal on the Server Edition Secondary server.

Backs up my Conferences

Default = Off

This option is available on the line from the primary to secondary server in Linux-based networks. If enabled, the secondary server will provide hosting for system meet-me conferences if the primary is not available.