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Back to New Features in VoLTE ReleaseIP Multimedia Subsystem (IMS)

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Overview

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The SBC, acting as P-CSCF, supports subscribing to a registration event package as defined in 3GPP TS 24.229 and RFC 3680. The flag supportRegEvent is added to IP Signaling Profile (IPSP) to configure support for registration event package per IP Trunk Group. The default value for this flag is 'disable'.

Additionally, two Address Context statistics are added to SBC in support of the Reg-Event Subscription feature.

  •  sipGeneratedSubscriptionStatus – List of individual subscriptions. All subscriptions present in the system display in the command results. Terminated subscriptions, however, will not display.
  •  sipSubscriptionCountStatistics – A count of subscription statistics in the system from the time system is up. These are reset on SBC reboot.

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