IMG 1010 - SIP 182 Queued
Feature F-5362 'Support of SIP 182 Queued' adds the functionality to process a SIP 182 Queued message if it receives the message from a SIP entity within the network. During call setup, the 182 Queued call status message is sent from the SIP entity to the IMG to notify it that the called party is unavailable at that moment and rather than reject the call, it has been put into a queue and is awaiting for the called party to become available. The IMG then will take the proper actions to either just put call on hold awaiting instructions or to put the call on hold but initiate a connection from IMG to calling party. The latter can be used to relay information to the calling party with an announcement informing them they are in a queue and the call will be answered in the sequence that it came in. Once the called party is available the far end SIP Entity informs the IMG the call can now be connected. The IMG then connects the call from the calling party to the far end SIP Entity.
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If PRACK is enabled in SIP SDP then IMG will respond with Provisional Acks as shown in call flow below |
Related Topics
Call Flow Diagram
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Configuration
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