T1 Channels

Last Updated : Dec 18, 2015 |
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Resource Id: T1_channels:15001
Resource Id: Line_T1:15002
The settings for each channel can be edited. Users have the option of editing individual channels by double-clicking on the channel or selecting and editing multiple channels at the same time. Note that the Line Appearance ID cannot be updated when editing multiple channels.
When editing a channel or channels, the settings available are displayed on two sub-tabs; T1 Edit Channel and Timers.
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. Line appearance is not supported for trunks set to QSIG operation and is not recommended for trunks be used for DID.
Direction
Default = Bothway
The direction of calls on the channel. The options are:
  • Incoming
  • Outgoing
  • Bothway
Bearer
Default = Any
The type of traffic carried by the channel. The options are: Voice, Data, Any.
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.
Type
Default = Loop-Start.
The T1 emulates the following connections:
  • Ground-Start
  • Loop-Start
  • E&M - TIE
  • E&M - DID
  • E&M Switched 56K
  • Direct Inward Dial
  • Clear Channel 64K
Trunks set to E&M - DID will only accept incoming calls.
If E&M - TIE is selected and the Outgoing Trunk Type is set to Automatic, no secondary dial tone is provided for outgoing calls on this line/trunk.
Dial Type
Default = DTMF Dial
Select the dialing method required. The options are: DTMF Dial, Pulse Dial.
Incoming Trunk Type
Default = Wink-Start
Used for E&M types only. The handshake method for incoming calls. The options are
Outgoing Trunk Type
Default = Wink-Start
Used for E&M types only. The handshake method for outgoing calls. The options are: Automatic, Immediate, Delay Dial, Wink-Start.
If the line Type is set to E&M-TIE and the Outgoing Trunk Type is set to Automatic, no secondary dial tone is provided for outgoing calls on this line/trunk.
Tx Gain
Default = 0dB.
The transmit gain in dB.
Rx Gain
Default = 0dB.
The receive gain in dB.
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.

Timer Settings

This sub-tab allows various timers relating to operation of an individual channel to be adjusted. These should only be adjusted to match the requirements of the line provider. The following is a list of the default values. To reset a value, click on the current value and then right click and select from the default, minimize and maximize options displayed.  
Incoming Automatic Delay: 410.
Incoming Wink Delay: 100.
Wink Signal: 200.
Incoming Dial Guard: 50.
First Incoming Digit: 15000.
Incoming Inter Digit: 5000.
Maximum Inter Digit: 300.
Flash Hook Detect: 240.
Incoming Disconnect: 300.
Incoming Disconnect Guard: 800.
Disconnected Signal Error: 240000.
Outgoing Disconnect: 300.
Outgoing Disconnect Guard: 800.
Ring Verify Duration: 220.
Ring Abandon: 6300.
Ping Verify: 600.
Long Ring Time: 1100.
Silent Interval: 1100.
Outgoing Seizure: 10.
Wink Start: 5000.
Wink Validated: 80.
Wink End: 350.
Delay End: 5000.
Outgoing Dial Guard: 590.
Outgoing IMM Dial Guard: 1500.
Outgoing Pulse Dial Break: 60.
Outgoing Pulse Dial Make: 40.
Outgoing Pulse Dial Inter Digit: 720.
Outgoing Pulse Dial Pause: 1500.
Flash Hook Generation: 500.
Outgoing End of Dial: 1000.
Answer Supervision: 300.
Incoming Confirm: 20.
Related links
T1 Line