T1 ISDN Channels

Last Updated : Dec 18, 2015 |
Navigation: Line | T1 ISDN Channels
This tab allows settings for individual channels within the trunk to be adjusted. This tab is not available for trunks sets to ETSI or QSIG mode.
The following settings are mergeable:
  • Incoming Group ID
  • Outgoing Group ID
  • Line Appearance ID
  • Admin
The remaining settings are not mergeable. Changes to these settings require a system reboot.
Field
Description
Channel
Allocated by the system.
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.
Line Appearance ID
Default = Auto-assigned. Range = 2 to 9 digits.  
Used for configuring Line Appearances with button programming. The line appearance ID must be unique and not match any extension number.
Direction
Default = Both Directions
The direction of calls on the channel. The options are: Incoming, Outgoing, Both Directions.
Bearer
Default = Any
The type of traffic carried by the channel. The options are: Voice, Data, Any.
Service
Default = None.
If the line provider is set to AT&T, select the type of service provided by the channel. The options are:
  • Call by Call
  • SDN (inc GSDN)
  • MegaCom 800
  • MegaCom
  • Wats
  • Accunet
  • ILDS
  • I800
  • ETN
  • Private Line
  • AT&T Multiquest
For other providers, the service options are None or No Service.
Admin
Default = Out of Service
Used to indicate the channel status. The options are: In Service, Out of Service, Maintenance.
Tx Gain
Default = 0dB
The transmit gain in dB
Rx Gain
Default = 0dB
The receive gain in dB.
Related links
T1 PRI Line