TIA-664 503-B-2007 Wireless Features Description Call Forwarding - Default (CFD).pdf

1、 TIA-664.503-B (Revision of TIA-664.503-A) October 2007Wireless Features Description: Call Forwarding- Default (CFD) ANSI/TIA-664.503-B-2007 APPROVED: OCTOBER 9, 2007 REAFFIRMED: JANUARY 24, 2013 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through elim

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19、13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 503-i Contents Wireless Features Description: Call ForwardingDefault Contents List of Tables.ii Revision Historyii 1 Call ForwardingDefault (CFD).1 1.1 Norm

20、al Procedures with Successful Outcome1 1.2 Exception Procedures or Unsuccessful Outcome .4 1.3 Alternative Procedures .5 1.4 Interactions with Other Wireless Services5 TIA-664.503-B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 4

21、3 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 List of Tables 503-ii List of Tables Table 1: CFD Subscription Options.1 Revision History Revision Date Remarks IS-53, Revision 0 August 1991 Initial publication IS-53, Revision A May 1995 Updated publication ANSI/TIA/EIA-664, Revision 0 June 1996

22、 Initial ANSI publication ANSI/TIA/EIA/664-503-A July 2000 Updated ANSI publication TIA-664.503-B September 2007 Updated publication TIA-664.503-B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

23、55 56 57 58 59 60 503-1 Call Forwarding Default (CFD) 1 Call ForwardingDefault (CFD) Call ForwardingDefault (CFD) redirects incoming calls addressed to the called subscribers Directory Number to the subscribers designated voice mailbox or to another Directory Number (forward-to number), when the sub

24、scriber is engaged in a call, does not respond to paging, does not answer the call within a specified period after being alerted or is otherwise inaccessible (e.g., the subscribers mobile station is turned off, the subscribers location is not known, the subscriber is reported as inactive, Call Deliv

25、ery not active for a roaming subscriber, Do Not Disturb is active for the subscriber). CFD does not impact a subscribers ability to originate calls. A subscriber may select a forward-to number termination address when the subscriber registers the CFD. Applicability to Telecommunications Services CFD

26、 is applicable to voice telecommunication services. 1.1 Normal Procedures with Successful Outcome Authorization CFD may be generally available or may be provided after prearrangement with the service provider. The authorization may have the following subscription options: Table 1: CFD Subscription O

27、ptions Subscription Options Values Registration Variable. The subscriber is authorized to specify his or her own forward-to number. Fixed. Forward-to number is registered upon authorization. Activation Demand. The subscriber is authorized to control the activation and deactivation of CFD. Permanent.

28、 CFD is active while authorized. Deauthorization CFD may be withdrawn at the subscribers request or for administrative reasons. Registration If the subscriber is authorized for Fixed Registration, the forward-to number shall be registered upon authorization. TIA-664.503-B 1 2 3 4 5 6 7 8 9 10 11 12

29、13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Call Forwarding Default (CFD) 503-2 The CFD forward-to number may be registered by the service provider upon authorization for Variable Registration subscri

30、bers. CFD may be registered by a Variable Registration authorized subscriber specifying the CFD registration feature code and a forward-to number termination address or voice message system Modifier Digit 8 (“V” on the keypad), as in: *FC + termination address + SEND , or *FC + 8 + SEND (Voice messa

31、ge system). If the registration is accepted, the system shall indicate success with feature confirmation treatment. Registration associates the subscriber with the termination address as a forward-to number or with a particular voice mail box on a voice message system. Voice mail box passwords are r

32、egistered separately with the voice message system. Deregistration CFD may be deregistered upon deactivation (at the home service provider option). If the deregistration is to be separate from deactivation, the deregistration feature code must be distinct from the corresponding deactivation feature

33、code. CFD may be deregistered by a Variable Registration authorized subscriber specifying the CFD deregistration feature code, as in: *FC0 + SEND . CFD shall be deregistered upon deauthorization. Activation If the subscriber is authorized for Permanent Activation, CFD shall be activated upon authori

34、zation. CFD may be activated upon authorization or registration for Demand Activation authorized subscribers. CFD may be activated upon registration for Variable Registration authorized subscribers. A previously registered CFD forward-to number may be activated by a Demand Activation authorized subs

35、criber specifying a CFD activation feature code, as in: *FC + SEND . If the activation is accepted, the system shall indicate success with feature confirmation treatment. The serving system may provide a courtesy call to the forward-to number shortly after this feature is activated permitting the su

36、bscriber to verify the validity of the forward-to number. TIA-664.503-B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 503-3 Call Forwarding Default (CFD) Deactivation CFD may

37、be deactivated by a Demand Activation authorized subscriber specifying the CFD deactivation feature code, as in: *FC0 + SEND . If the deactivation is accepted, the system shall indicate success with feature confirmation treatment. CFD shall be deactivated upon deauthorization or deregistration. Invo

38、cation The feature treatment is invoked when there is an incoming call that is not or cannot be answered (for any reason) and CFD is activated. Reasons for forwarding a call with CFD include: a. Do Not Disturb active, etc. b. MS location is not known. c. MS reported inactive. d. Roaming with Call De

39、livery deactive. e. No MS response to a page request. f. No MS or subscriber response to alerting. g. No subscriber response to Call Waiting notification. h. Subscriber is engaged in a call or service. If the called subscriber is available and in any state other than the idle state, the subscriber i

40、s considered to be busy and CFD may apply. Normal Operation with Successful Outcome When CFD is active, incoming calls for the subscriber shall be forwarded to the registered forward-to number or voice mailbox when the subscriber does not or cannot answer the call. Call Detail Record The system shou

41、ld record call detail information for the following: a. CFD registration activities and events. b. CFD deregistration activities and events. c. CFD activation activities and events. d. CFD deactivation activities and events. e. CFD invocation events. f. Forward-to call leg usage. TIA-664.503-B 1 2 3

42、 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Call Forwarding Default (CFD) 503-4 See DMH for the specific information to be included for each element. 1.2 Exception Procedures or

43、Unsuccessful Outcome Registration If the subscriber is not authorized for the request, or if the forward-to number is not acceptable, the system shall apply feature denial treatment when registration is attempted. The system should not accept forward-to numbers to the operator (0- or 0+), service co

44、des (N11), police, fire or similar agencies, or a revertive call. Deregistration If the subscriber is not authorized for the request, the system shall apply feature denial treatment when deregistration is attempted. Activation If the subscriber is not authorized for the request, or if a forward-to n

45、umber is not properly registered, the system shall apply feature denial treatment when activation is attempted. If the courtesy call to the forward-to number cannot be routed, then the call should be given the appropriate treatment, such as applying the Special Information Tone for intercept to the

46、registering subscriber. Since the validity of the forward-to number is in doubt, CFD may be deregistered and deactivated. Courtesy calls need not be answered to verify the validity of the forward-to number. Deactivation If the subscriber is not authorized for the request, the system shall apply feat

47、ure denial treatment when deactivation is attempted. Invocation If the forwarded call cannot be routed to the forwarded-to destination, then the call should be given the appropriate treatment, such as applying the Special Information Tone for intercept to the calling party. Precautions should be tak

48、en to preclude undesirable looping of forwarded numbers within the MSC or between the MSC and other switching centers. If such looping is detected, the call forwarding should be given the appropriate treatment, such as applying the Special Information Tone for intercept to the calling party. Excepti

49、ons While Roaming None identified. TIA-664.503-B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 503-5 Call Forwarding Default (CFD) Exceptions During Intersystem Handoff None identified. 1.3 Alternative Procedures None identified. 1.4 Interactions with Other Wireless Services Asynchronous Data Service (ADS) *FC may not be supported (Fixed Registration and Permanent Activation option is supported). Different CFD treatment may be applied for ADS ca