B.2 GPRS aspects when connected to the IM CN subsystem

24.1743GPPRelease 17Stage 3Support of multi-device and multi-identity in the IP Multimedia Subsystem (IMS)TS

B.2.1 Procedures at the UE

B.2.1.1 Service specific access control

B.2.1.1.1 General

This clause specifies service specific access control in addition to procedures as specified in annex K of 3GPP TS 24.173 [19].

B.2.1.1.2 Call pull specific procedures

When the UE decides to pull a call from another federated UE, the UE provides a "call-pull-initiated" indication to the lower layers.

Annex C (normative):
IP-Connectivity Access Network specific concepts when using EPS to access IM CN subsystem