Section: 6.4.9 Emergency call handling
Content: PLMNs shall support an emergency call teleservice as defined in TS 22.003[ Circuit Teleservices supported by a Public Land Mobile Network (PLMN) ]  [32] which fulfils the additional service requirements defined in TS 22.101[ Service aspects; Service principles ]  [33]. The PS domain of a PLMN may support establishment of PS connections for the purposes of IP multimedia subsystem emergency sessions as defined in TS 23.167[ IP Multimedia Subsystem (IMS) emergency sessions ]  [34] which fullfills service requirements defined in TS 22.101[ Service aspects; Service principles ] . IMS Emergency Session Support in the PS domain is specified in TS 23.060[ General Packet Radio Service (GPRS); Service description; Stage 2 ]  [9].