Section: 11.3 Timers of circuit-switched call control
Content: Table 11.3/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] : Call control timers - MS side NOTE 1: T310 is not started if progress indicator #1, #2, or #64 has been delivered in the CALL PROCEEDING message or in a previous PROGRESS message. NOTE 2: The value of this timer is implementation dependent. Table 11.4/3GPP TS 24.008[ Mobile radio interface Layer 3 specification; Core network protocols; Stage 3 ] : Call control timers - network side NOTE 1: The network may already have applied an internal alerting supervision function; e.g. incorporated within call control. If such a function is known to be operating on the call, then timer T301 is not used. NOTE 2: These time values are set by the network operator. NOTE 3: When applied to the supplementary service CCBS, the timer T334 can either represent the recall timer T4 or the notification timer T10 (see 3GPP TS 23.093[ Technical realization of Completion of Calls to Busy Subscriber (CCBS); Stage 2 ]  [88a]). Thus the timer T334 can take two different values. 3GPP TS 23.093[ Technical realization of Completion of Calls to Busy Subscriber (CCBS); Stage 2 ]  [88a] defines the range of these values.