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The

Spacevars
0series4
 supports routing non-INVITE messages, including out-of-dialog messages, in SIP core in addition to INVITE only messages.

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Routing non-INVITE out-of-dialog messages is supported for the following types of SIP messages:

  • MESSAGE
  • NOTIFY
  • REFER
  • REGISTER
  • OPTIONS
  • INFO
  • SUBSCRIBE
  • PUBLISH

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  1. Enable signaling flag relayNonInviteRequest on the all the Trunk Groups including the default SIP Trunk Groups.
    Reference: SIP Trunk Group - Signaling - CLI

  2. Enable new flag sipRegRelay on the default Zone
    Reference: Common IP Attributes - SIP - CLI

  3. Set the relayFlags related to the appropriate events needed on the Inter-Gateway Signaling Group or Signaling Gateway Group IPSP used for the inter-SBC leg. This enables SUBSCRIBE messages with specific events to pass through.
    Reference: Common IP Attributes - SIP - CLI

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Note

The above configurations must be performed in addition to the configuration mentioned in Configuring the SBC to use SIP in the Ribbon IP Core.

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