When a user makes a call by dialing a number:
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Dial Short Code Completed:
The dialing is processed though user, user rights, system and ARS short codes.
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SIP Line URI/Line Appearance Matching:
The IP Office looks for a SIP URI with the same Outgoing Group as the short code's Line Group ID.
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Each line is checked in Line Number order.
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SIP Line Appearance entries are checked first, then SIP URI entries.
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Entries that have reached their Max Sessions or Outgoing Sessions are skipped.
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Once a match is found, it and the SIP line to which it belongs are used:
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The line's Call Initiation Timeout (s) (default 4 seconds) sets how long the IP Office waits for a response to the attempt to initiate a call before following any alternate routes set in the ARS form.
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The line's Call Queuing Timeout (m) (default 5 minutes) sets how long the IP Office waits for the call to be answered after receiving a provisional response.
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No Available URI:
If all possible matches have reached their Max Sessions or Outgoing Sessions value:
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If the call was routed via an ARS short code, the ARS settings determine whether the call can be redirected to an alternate route.
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Otherwise, the call waits for a matching URI to become available ("Waiting for Line").
