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Telephone switch dependency
Issue 2.1 August 2003 43
Chapter 5: Methods
This section describes the VTel methods. It contains the following topics:
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Telephone switch dependency on page 43
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Pass-through requests on page 44
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Initiating calls on page 45
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Terminating calls on page 45
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Querying and setting EDU values on page 46
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VTel command summary on page 47
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Interface Description Language (IDL) specification on page 50
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VTel methods (requests from other applications) on page 52
Telephone switch dependency
The availability and operation of certain commands is dependent on the telephone switch
being used, its options and software version, and its configuration. For example:
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if a switch does not support standard ACD services, a phone generally cannot be made
Busy, and the WrapUp mode will not prevent additional incoming calls.
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if the switch is configured for AutoReady operation, you may encounter a condition
where the phone state cannot be changed by VTel before another call arrives
The number of available inbound and outbound line appearances available will vary
depending on both configuration and trunk capacity. VTel cannot always predict line
appearances, and may only return a failure if an outbound request is rejected.