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| Health Care System III | Advanced Use | |
Below is a list of common |
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| Type | Manufacturer | PRI Switch Type setting |
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| ATT 4 ESS | AT&T | AT&T ISDN |
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| ATT 5 ESS | AT&T/Lucent | AT&T ISDN or National ISDN* |
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| DMS 100 | Northern Telecom | National ISDN |
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| DMS 250 | Northern Telecom | National ISDN |
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| * Settings will depend on configuration of the switch. PRI Switch Type is not changed when Restoring Defaults. |
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Channel Hunting
Max Channels | Maximum number of channels the unit may use at any given time. |
Low Channel | The lowest numbered |
| for outgoing calls. |
High Channel | The highest numbered |
| for outgoing calls. |
Search | Specifies where the system will start searching for available |
PRI line
Codec 1
Low Channel: 10
High Channel: 20
Max Channel: 6
PRI 1
PRI 2
Channel hunting is normally used in conjunction with PRI
Max Channels may be used for PRIs that are provisioned for a lower number of channels.
Codec 2 or
PBX
Channels:
will be available for the codec/PBX
Max Channels may be used as mechanism to ensure that there is bandwidth available to codecs further down the chain when
‘High Channel’, ‘Low Channel’ and ‘Search’ may be used for PRIs provisioned with specific requirements for
In this example, the unit will start searching for available
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