Section: 5.2.3.3 CC-Establishment confirmation
Content: The call control entity of the network in the "CC-establishment present" state, shall, upon receipt of a CC-ESTABLISHMENT CONFIRMED message, stop timer T333 and enter the "CC-establishment confirmed" state. For speech calls, if the ESTABLISHMENT CONFIRMED message contains a Supported Codec List information element, the network shall use this list to select the codec for UMTS. If no Supported Codec List information element is received, then for UMTS the network shall select the default UMTS speech codec according to subclause 5.2.1.11. Codecs for GERAN shall be selected from the codecs indicated in the Supported Codec List information element or in the Bearer Capability information element. If neither a Supported Codec List information element nor a Bearer Capability information element is received, then for GERAN the network shall select GSM full rate speech version 1. Codec information that does not apply to the currently serving radio access shall be used by the network if an inter-system change occurs. In the "CC-establishment confirmed" state, the network sends a RECALL message. This message initiates user alerting and also shall include the Facility IE (providing additional information to be presented to the user for notification). The network starts timer T334 and enters the 'recall present' state. Upon reception of the RECALL message the Mobile station stops T335 and enters the "recall present" state. Figure 5.7b/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ]  Recall