1、 TIA-664.525-B (Revision of TIA-664.525-A) October 2007Wireless Features Description: Asynchronous Data Service (ADS) ANSI/TIA-664.525-B-2007 APPROVED: OCTOBER 23, 2007 REAFFIRMED: JANUARY 29, 2013 NOTICE TIA Engineering Standards and Publications are designed to serve the public interest through el
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19、2 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 60 525-i Contents Wireless Features Description: Asynchronous Data Service Contents Revision Historyii 1 Asynchronous Data Service (ADS) 1 1.1 Normal Procedu
20、res with Successful Outcome1 1.2 Exception Procedures or Unsuccessful Outcome .3 1.3 Alternative Procedures .4 1.4 Interactions with Other Wireless Services4 TIA-664.525-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
21、 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Revision History 525-ii Revision History Revision Date Remarks IS-737, Revision 0 May 1998 Initial publication ANSI/TIA/EIA/664-525 July 2000 Initial ANSI publication TIA-664.525-A December 2000 Updated ANSI publication TIA-664.525-B September 2007 Updated
22、publication TIA-664.525-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 60 525-1 Asynchronous Data Service (ADS) 1 Asynchronous Data Service (ADS) This telecommunication service
23、allows digital wireless subscribers to send and receive asynchronous data. ADS provides functionality similar to a wireline modem in that the data is modified to make it suitable for transporting over the appropriate medium. Both wireless and wireline media are accommodated to support interworking b
24、etween the two networks in a way that is transparent to the terminal equipment. The subscribers terminal equipment interfaces to a conventional DCE (Data Circuit-Terminating Equipment) data port. The far-end DCE interworks each end function as if connected to a compatible device. ADS procedures and
25、interfaces are specified by appropriate air interface standards and specifications (e.g., CDMA). These specify compliance with other common data standards (e.g., TIA-602) and ITU recommendations (e.g., V.32 bis, V.42). Mobile originated service may be of two types: Data Only and Voice Then Data. Mob
26、ile terminated service may be of three types: One Number per Service, Two-Stage Dialing, or Voice Then Data. Applicability to Telecommunications Services ADS is applicable to data telecommunication services. ADS is applicable to voice services in those cases where a voice call is made prior to a use
27、r initiated voice to data service change. 1.1 Normal Procedures with Successful Outcome Authorization ADS may be provided after prearrangement with the service provider, or may be made generally available by the service provider. Deauthorization If ADS is provided after prearrangement with the servi
28、ce provider, the service shall be deauthorized at the subscribers request or for administrative reasons. Registration ADS has no registration. Deregistration ADS has no deregistration. TIA-664.525-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
29、 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 Asynchronous Data Service (ADS) 525-2 Activation ADS shall be activated upon authorization and issuance of the proper AT command. Deactivation ADS shall be deactivated upon deauthorization or issuance of the proper AT command. Inv
30、ocation ADS is invoked by issuing the appropriate AT commands (e.g., ATD command). Mobile Origination Mobile originated service may be of two types: Data Only and Voice Then Data. Data Only A mobile subscriber originates a data call to a terminating party (PSTN user or mobile subscriber). The termin
31、ating party may either have a separate telephone number for data services, or (based on calling tones, alerting pattern, or some other means) utilize a single line to terminate both voice and data services. Voice then Data A mobile subscriber originates a voice call to a terminating party (PSTN user
32、 or mobile subscriber). The terminating party has a single telephone number for both voice and data services. The call is answered as a voice call when the modem is made ready, the mobile subscriber initiates a voice to data service change. In another case, the originating mobile subscriber informs
33、the terminating party that the in progress voice call shall be ended, then call back with a data call. The originating mobile subscriber then initiates a data call. Mobile Termination Mobile terminated service may be one of three types: One Number per Service, Two-Stage Dialing, or Voice Then Data.
34、One Number per Service An originating party places a data call to the terminating mobile subscriber. The mobile station has a separate telephone number for data calls. Two-Stage Dialing The wireless carrier has one or more Directory Numbers (DN) for ADS service. Since the number is related to the se
35、rvice, it is shared by all subscribers. An originating party places a call to one of the ADS DNs. The number selected corresponds to the requested data service. When the data service returns dial tone, the originating partys modem dials the terminating mobile subscribers DN. The call is presented as
36、 a data call. TIA-664.525-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 60 525-3 Asynchronous Data Service (ADS) Voice then Data An originating party places a voice call to the
37、 terminating subscriber. The subscribers mobile termination has a single telephone number for both voice and data services. The mobile subscriber answers the call using voice service and initiates a voice to data service change. In another case, the originating party informs the terminating mobile s
38、ubscriber that he or she shall end the current voice call, then call back with a data call. The mobile subscriber manually switches the service from voice to data service prior to receiving the call. Call Detail Record The system should record call detail information for the following: a. Service in
39、vocation event and time. b. Elapsed time for Voice and ADS. c. Use of the InterWorking Function (IWF). d. Number of Octets (or Packets). See DMH for the specific information to be included for each element. 1.2 Exception Procedures or Unsuccessful Outcome Registration None identified. Deregistration
40、 None identified. Activation None identified. Deactivation None identified. Invocation If ADS cannot be established for the end-to-end call, or if the call is interrupted in progress, the network may clear the call. The originator of the call should be provided an indication that the call has failed
41、. TIA-664.525-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 Asynchronous Data Service (ADS) 525-4 Exceptions While Roaming ADS shall not be supported in an analog system. Ex
42、ceptions During Intersystem Handoff ADS shall not be supported in an intersystem handoff to an analog system. 1.3 Alternative Procedures None identified. 1.4 Interactions with Other Wireless Services Asynchronous Data Service (ADS) Not applicable. Call Delivery (CD) *FC may not be supported (Permane
43、nt Activation option is supported). Call ForwardingBusy (CFB) *FC may not be supported (Fixed Registration and Permanent Activation option is supported). Different CFB treatment maybe applied for ADS calls. Call ForwardingDefault (CFD) *FC may not be supported (Fixed Registration and Permanent Activ
44、ation option is supported). Different CFD treatment may be applied for ADS calls. Call ForwardingNo Answer (CFNA) *FC may not be supported (Fixed Registration and Permanent Activation option is supported). Different CFNA treatment may be applied for ADS calls. Call ForwardingUnconditional (CFU) *FC
45、may not be supported (Fixed Registration and Permanent Activation option is supported). Different CFU treatment may be applied for ADS calls. Call Transfer (CT) ADS does not support CT. TIA-664.525-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 3
46、7 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 525-5 Asynchronous Data Service (ADS) Call Waiting (CW) CW is not supported when the call (i.e., either the current or incoming) is known to be a data call. Calling Name Presentation (CNAP) None identified. Calling Name Restricti
47、on (CNAR) None identified. Calling Number Identification Presentation (CNIP) None identified. Calling Number Identification Restriction (CNIR) *FC may not be supported (CNIR or Default could be set by subscription). Conference Calling (CC) ADS does not support CC. Data Privacy (DP) None identified.
48、Do Not Disturb (DND) ADS does not support DND. Emergency Services (9-1-1) None identified, providing the PSAP and the emergency services network have the appropriate equipment. Flexible Alerting (FA) *FC may not be supported (Permanent Membership option is supported). Group 3 Facsimile (G3 Fax) ADS
49、cannot be invoked simultaneously with G3 FAX. TIA-664.525-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 Asynchronous Data Service (ADS) 525-6 Message Waiting Notification (MWN) *FC may not be supported. Pip Tone may not be supported while in a data call. Mobile Access Hunting (MAH) *FC may not be supported (Permanent Membership option is supported). Network Directed System Selection (NDSS) None identified. Non-Public Service Mode (NP) None identi
