Avaya Phone Systems

Avaya IP Office

The Avaya IP Office platform is the ultimate in converged voice and data technology. IP Office brings a combination of voice and data applications formerly reserved for only the largest corporations. Cutting edge customer service with easy to use tools is now available to the smallest of businesses.

Service | Bandwidth

These options give the ability to make ISDN calls between sites only when there is data to be sent or sufficient data to warrant an additional call. The calls are made automatically without the users being aware of when calls begin or end. Using ISDN it is possible to establish a data call and be passing data in less that a second. Note: the system will check Minimum Call Time first, then Idle Period, then the Active Idle Period.

Settings

• Minimum No of Channels: Default = 1. Range = 1 to 999.
  Defines the number of channels used to connect for an outgoing connection. The initial channel must be established and stable, before further calls are made.

• Maximum No of Channels: Default = 1. Range = 1 to 999.  
  Defines the maximum number of channels to can be used. This field should contain a value equal to or greater than the Minimum Channels field.

• Extra BW Threshold: Default = 50%. Range = 0 to 100%.
  Defines the utilization threshold at which extra channels are connected. The value entered is a %. The % utilization is calculated over the total number of channels in use at any time, which may be one, two etc.

• • For example, if Minimum Channels set to 1, Maximum Channels set to 2 and Extra Bandwidth set to 50 - once 50% of first channel has been used the second channel are connected.

• Reduce BW Threshold: Default = 10%. Range = 0 to 100%.
  Defines the utilization threshold at which additional channels are disconnected. The value entered is a %. Additional calls are only dropped when the % utilization, calculated over the total number of channels in use, falls below the % value set for a time period defined by the Service-Idle Time. The last call (calls - if Minimum Calls is greater than 1) to the Service is only dropped if the % utilization falls to 0, for a time period defined by the Service-Idle Time. Only used when 2 or more channels are set above.

• • For example, if Minimum Channels set to 1, Maximum Channels set to 2 and Reduce Bandwidth is set to 10 - once the usage of the 2 channels drops to 10% the number of channels used is 1.

• Callback Telephone Number: Default = Blank
  The number that is given to the remote service, via BAP, which the remote Control Unit then dials to allow the bandwidth to be increased. Incoming Call routing and RAS Services must be appropriately configured.

• Idle Period (secs): Default = 10 seconds. Range = 0 to 999999 seconds.
  The time period, in seconds, required to expire after the line has gone idle. At this point the call is considered inactive and is completely closed.

• • For example, the 'Idle Period' is set to X seconds. X seconds before the 'Active Idle Period' timeouts the Control Unit checks the packets being transmitted/received, if there is nothing then at the end of the 'Active Idle Period' the session is closed & the line is dropped. If there are some packets being transmitted or received then the line stays up. After the 'Active Idle Period' has timed out the system performs the same check every X seconds, until there are no packets being transferred and the session is closed and the line dropped.

• Active Idle Period (secs): Default = 180 seconds. Range = 0 to 999999 seconds.  
  Sets the time period during which time the line has gone idle but there are still active sessions in progress (for example an FTP is in process, but not actually passing data at the moment). Only after this timeout will call be dropped.

• • For example, you are downloading a file from your PC and for some reason the other end has stopped responding, (the remote site may have a problem etc.) the line is idle, not down, no data is being transmitted/ received but the file download session is still active. After the set time period of being in this state the line will drop and the sessions close. You may receive a remote server timeout error on your PC in the Browser/FTP client you were using.

• Minimum Call Time (secs): Default = 60 seconds. Range = 0 to 999999 seconds.
  Sets the minimum time that a call is held up after initial connection. This is useful if you pay a minimum call charge every time a call is made, no matter the actual length of the call. The minimum call time should be set to match that provided by the line provider.

• Extra BW Mode: Default = Incoming Outgoing
  Defines the mode of operation used to increases bandwidth to the initial call to the remote Service.

• • Outgoing Only
    Bandwidth is added by making outgoing calls.

  • Incoming Only
    Bandwidth is added by the remote service calling back on the BACP number (assuming that BACP is successfully negotiated).

  • Outgoing Incoming
    Uses both methods but bandwidth is first added using outgoing calls.

  • Incoming Outgoing
    Uses both methods but bandwidth is first added using incoming BACP calls.