PARTNER® Version, Installation and Reference Manual
Page 95
- Issue 1a (30 January 2010)
IP Office Essential Edition
Administration: External Trunk Configuration
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Fallback
If available, the clock signal from this trunk can be used as the clock source only if none of the trunks set to
Network are providing a clock source.
·
Unsuitable
The clock source from this trunk is never used as the IP Office clock source.
In the example below the first Essential Edition - PARTNER® Version is set to use the public network trunk as its clock
source and ignoring the possible clock source from the QSIG trunk. However the other system is using the QSIG trunk as
it clock source.
Source Priority
When multiple trunks with the same setting are providing a clock signal, the trunk used is determined in the following
order of slots 1 to 4 and then by port on each slot.
Viewing the Current Clock Source
The current clock source being used by an Essential Edition - PARTNER® Version system is shown on the Resources page
within the IP Office
System Status Application
.
Objective - Set a chosen digital trunk as the network clock source and set all other digital trunks as fallback or
unsuitable.
Refer to the IP Office Manager Essential Edition - PARTNER® Version Administrator documentation.
5.4.2 Unused Trunks
Each IP Office trunk card provides a fixed number of trunk ports. For digital trunks each trunk provides a set number of
digital channels. In cases where the number of trunks connected to the Essential Edition - PARTNER® Version is lower or
the number of channels provided is lower, those unused trunks and channel must be disabled.
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Failure to do this will cause problems with outgoing calls. For example, on a system with an ATM4 trunk card
fitted but only two analog trunks actually connected, failure to disable the other two trunks within the Essential
Edition - PARTNER® Version configuration will cause 50% of outgoing call attempts to fail.
Objective
Remove unused trunks and channels from the telephone system configuration.
Refer to the IP Office Manager Essential Edition - PARTNER® Version Admin Tool (Manager) User Guide.
5.5 Changing Components
Base cards and external expansions modules must only be removed and added to an Essential Edition - PARTNER®
Version system when that system is switched off.
In the sections below, the term component can refer to a card fitted into the control unit or an external expansion
module.
Note that for extension ports, by default both an extension entry and a user entry will exist in the Essential Edition -
PARTNER® Version configuration. Extension entries can be deleted without deleting the corresponding user entry. This
allows retention of the user settings and association of the user with a different extension by changing the extensions
Base Extension number to match the user's Extension ID.