Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 2 of 24 PageID 34
`llllllllllllll~lllllllllllllllllllllllllllllllllllllllllllll
`I IIIII
`
`US008155298B2
`
`(12) United States Patent
`Wood et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 8,155,298 B2
`*Apr.lO, 2012
`
`(54) TANDEM ACCESS CONTI~OLLER WITIIIN
`THE PUBLIC SWITCHED TELEPHONE
`NETWORK
`
`(75)
`
`Inventors: Samuel F. Wood, Los Altos Hills, CA
`(US); J~rry A. Klein, Los Altos. CA
`(US); Margaret Susan Asprey, Los
`Altos, CA (US)
`
`(73) Assignee: Tclcmaw LLC. Los Altos. CA (US)
`
`4,310,726 A
`4,313,035 A
`4,348,554 A
`4.569,041 A
`4.608.685 A
`
`111982 Asmuth ......................... 179/18
`1/1982 Jonlan el al.
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`2/1986 Takeu~bi el al.
`811986 Jain et al.
`(Continued)
`
`J)E
`
`FOREIGN PArENT IXX'UMENTS
`19813179
`(Continu~o-d)
`
`( • ) Notice:
`
`Subji!Ctto any disclaimer. the tenn of this
`patent is extended or adjusted under 35
`lJ.S.C. 154(b) by 1355 days.
`
`This patent is subj~o-ct to a tenninul dis·
`claimer.
`
`Orl IER PUBL IC-\rJONS
`
`IU'(' 3298 Sc.r.,.ice in the J>STS. Aug 2002
`
`(Continued}
`
`(21) Appl. No.: 11/428,822
`
`(22) Filed:
`
`Jul. 5, 2006
`
`(65)
`
`US 2006/0239436Al
`
`Prior Publication Data
`Oct. 26, 2006
`
`(63)
`
`(51)
`
`(52)
`(58)
`
`(56)
`
`Related U.S. Appllc:11tlon Data
`
`Continuation of application No. 10/426,279, tiled on
`Apr. 30, 2003, now Pat. No. 7,324,635, which is a
`continuation-in-part of application No. 09/565,565,
`filed on May 4, 2000, now Pat. No. 6,574,328.
`
`lnt.CI.
`/104M 1142
`(2006.01)
`/104M 7100
`(2006.01)
`U.S, CJ •................................... 379/211.01: 3791224
`Field ofC'Iasslticullon Scurclt .................. 379/224.
`3791221.1 I. 221.08. 2 I 1.01. 221
`See application file lor complete search history.
`
`Rderenees CUed
`
`U.S.!>.1nENT DOCUMENTS
`4,100,377 A
`7/1971! Hnnagan
`12/1980 Takahashi ct nl.
`4,238,&51 A
`
`Primary f:xaminer- Rasha AI Aubaidi
`(74) Attorn(!)', Agent. or Fin11 DLA Piper LLP (US)
`
`(57)
`
`ABSTRACT
`
`In one embodiment, the system includes a processor, referred
`to herein as a tandem access controller (fAC). coupled to the
`PSTN, where the TAC allows a subscriber to set-up and make
`changes to the configuration of his or her phone line or other
`communications device. Such changes include sdi!Ctive call
`forwarding. In one embodiment, the TAC is controlled by the
`subscriber using the web. "lbe TAC is 1.:oupled internally to the
`PSTN in a locul service area and is outside the central oflice
`of the subscriber. A calling party makes a first call to the
`subscriber using the subscriber's public telephone number.
`'lbe ·1:-\C receives the first cull prior to the cull rc-.tching the
`subscriber's tenninating centr.tlolllce. which in some cuses
`uvuids 11 toll. The "[o\C then carries out the subscriber's
`instructions lor the first cull. such as makin11- one or more
`SI.'Ctmd c1slls using telephone numbers dilli:rent from the sub(cid:173)
`scriber's public telephone number. When the si!Cond call is
`unswered, the answering phone is connected by the TAC to
`the caller.
`
`42 Clulms, 11 l)ruwlng Sheets
`
`Bright House Networks - Ex. 1001, Page 1
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`

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`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 3 of 24 PageID 35
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`us 8,155,298 82
`Page 2
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`Bright House Networks - Ex. 1001, Page 2
`
`

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`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 4 of 24 PageID 36
`
`US 8,155,298 B2
`Page3
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`
`200310156693 AI
`200310194078 AI
`200410029568 AI
`200410240657 AI
`2004/0264673 AI
`2005/0041526 A I
`2005/0141500 AI
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`200S/0207SS7 AI
`2007/0041526 AI
`
`1!12003 Goldman
`10/2003 Wood et al.
`212004 DeLuo;aet al.
`1212004 Camarillo ................ 3791221.02
`1212004 Novao;k .................... 379/221.11
`212005 Esmersoy et aJ.
`6/2005 Bhandarietal.
`8/2005 Harris
`9/2005 Dolan et at.
`llill et al .................... 379188.21
`212007
`
`EP
`EP
`EP
`EP
`EP
`EP
`EP
`EP
`Et•
`EP
`EP
`F.P
`EP
`EP
`EP
`EP
`EP
`GB
`JP
`JP
`JP
`JP
`wo
`wo
`wo
`wo
`wo
`\VO
`wo
`wo
`\VO
`WO
`wo
`\VO wo
`wo
`wo
`\VO wo
`wo
`wo
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`wo
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`wo
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`wo
`WO
`
`FOREIGN PATENT DOCUMENTS
`J/1994
`0578374
`411996
`0704788
`1011996
`0738093
`1!11997
`0 789 470
`91997
`0 794 650
`0 797 373
`9'1997
`2'1998
`0 824 298
`J. 1998
`0 829 995
`5•1998
`0 841 831
`6iJ')98
`0 847 176
`811998
`0858202
`911998
`0 !!66 596
`1011998
`0872998
`1011998
`0869688
`1011998
`0918423
`1211998
`01!1!1841!
`211999
`0898431
`111998
`2 315 190
`111998
`10-23067
`211998
`10-51453
`611998
`10-164135
`611998
`10-164257
`311994
`W094105111
`12!1995
`W095134985
`311996
`W096/08935
`511996
`W09611559K
`411997
`WO 97/ 14234 A2
`W097114238
`411997
`511997
`W097/J6007
`W097/22216
`611997
`611997
`W097123078
`711997
`W097/27692
`811997
`W097121!628
`811997
`W097129581
`811997
`W097131492
`811997
`W097!31492
`W097/33412
`911997
`911997
`W097i33421
`JO!J997
`W097t38511 A2
`W097,3855t
`10'1997
`W097t39560
`10'1997
`W097i44943
`lli1997
`WO 97146073 A2
`12·1997
`J2!1997
`\V097i471 18
`1211997
`W097 1S0217
`wo 97"50271
`12 11997
`\VO 97150277 A2
`121 1997
`W09&,00988
`)11998
`W098104065
`1·1998
`2•1998
`W0911i04989
`311998
`W09lti1053K
`Ji 19'J8
`W0911:11704
`W098/12860
`311998
`411998
`\V091!/13974
`411998
`W098/160SJ
`W098/18238
`411998
`W098/18289
`411998
`W098/19425
`5/1998
`W098/19445
`511998
`511998
`W098/20701
`511998
`W098/21911
`W098/23067
`511998
`511998
`W098/23080
`6/1998
`W098/26543
`7/1998
`EP0851653
`EP 0 853 411 A2
`111998
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`711998
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`wo
`wo
`wo
`wo
`wo
`wo
`WO wo
`wo
`wo
`WO wo
`wo
`WO wo
`wo
`wo
`wo
`wo
`wo
`wo
`wo
`wo
`wo
`wo
`wo
`wo
`wo
`
`W091!130007
`W098130008
`W098/30008
`W098/34391
`W098/34399
`W098/36S43
`W098/3766S
`W098137665
`WO 98137688 A2
`W098/39897
`W098/42104
`W091!/42107
`W091!142146
`WO 98/47256 A2
`W091!15J063
`W0991J2J6S
`W099' 19981!
`W09920059
`W099JS802
`\V()'J9145687
`W001'0507K
`WOOJ·24496
`WOOI1244911
`WOOJI24500
`WOOJi24501
`woo 1124502
`WOOI124503
`W010184859
`
`7iJ998
`7/19')11
`7119911
`8/1998
`811998
`8/1998
`8/1998
`8/1998
`8/1998
`9/1998
`9/1998
`9/199!1
`9/1998
`10i19'JII
`llil9')1!
`3.t999
`41999
`41 19')')
`7 1999
`9 19'J9
`I 2001
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`42001
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`412001
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`OlliER PUBLIC~riONS
`
`Implementing AulomaJic l.ocalion t:r<L11e for Follow-Me 1L11aha.~c
`using VoiP and Bluctooth Tec:hnologi~os. IEEE Transa~;~ion on com·
`pulers.vol. St, No. JO,Oet. 2002.
`New services demand anl<.:gralion. El•:ctronic Ensmcerms Times.
`Aug. 28, 2000, Iss. tl28; I'· 110.
`Natural Microsyslems, M2 Presswire. Covenuy: Aug 18.2000
`This pipe dream will come true: \oice Over lnt<:rn.:t Protocol ( VoJI>)
`tec:hnology will make the phone Box something that really talks.
`Busin~'Ssline, Chennai: Apr. 17, 2002.
`Using Optimization to Achieve Elftcient Quality of Servu:.: an Voice
`over IP Networks. IEEE 2003.
`Broadsoft literature Bro:ulworks overview, Copyright dale 2002
`BroadSoft introduces indusuy's farst complete service deliwry and
`creation product suite for enhanced telerhony services Broadworks.
`ATM Newsletter. Boston: Mar. 2000. vol 9. Iss. 3. p. 13.
`nroadSoft unveils advano;ed an:hil~o-.:ture for the rarid and cos! clf~o-c­
`live deliv~o'l}' of enhanc...t communications ~rvic~o-s. Wcb,;ite. Aug
`25. 1999. Press releases. 3 rag~o"S.
`1\lX" Tel~o""o;ommunications; SS7 N~o"W Net SS7 lutonal; l"opyrighl
`1999.
`Mary Cannichad. "'('ails Thai Fnlluw yuu ,\nywhere"' S~o-wsw~o-ck.
`Apr 28. 2001. p 43
`European Search Repon. 3 rag~o-s. from l~uropean ,\PJllication So.
`04252483.5 (EJ> Patent No. 147394781)
`U.S. Appl. No. 09-406.322. Schuiiler er al .• Jiled Scp. 27. J\I')'J.
`U.S. Appl. No. 09'~1 ~.798. Schuster 1.1 al. filed h-b 29. 2000
`Dowden.l>ouglasC. et al .• "l"he l'uaure oDietwork-J>rovid~o-d Com·
`municaJions Services." Bell Lobs li:clmi,·ul Joumol. Jut ·Sep. 2000.
`PI'· 3-tO.
`Foard. C. F. "'"lea~ning Swir.:hes and Computers lor l"ustom~o-r r\pph·
`cations."' AT&TTt>chnoloK>'• 1991;6.4; Reseasch l.ibrouy. Pi' 32-lK
`Foster, Robin Harris. ··computer·Telephone lnt~o-graJion (Joc:s Glo(cid:173)
`bal."' AT& TTechoolog,•, Autumn 1995; 10. 3; Research Library, pp.
`18-22.
`Ku~:ik. Jack. el al., ··on Opening PSTN to Enh.~nc~o'li \o•icd)aJa
`Services-The PINT Protocol Solution," Bt>lll.obs 1i-dmical Jour(cid:173)
`nul, Jul.-S~o'P. 2000. pp. tSJ-165.
`Lui, Anthony Y., et at., '"The Enhanced Service Manaser: ,\ Servace
`Management System for Scxt-Gcncmtion Networks."' llt>ll l.abs
`Teclmicol.lounull. Jul.-Sep. 2000, 1'1'· 130-144.
`Reisfield, E.S., "Custom~"IS Take Control of the AT.!H Nclwork."'
`AT&TTechnoiOK>'• 1991; 6. I; Research Library, PI'· 44-48.
`Sijben. Paul G., et al, '"Bridging the Gap to Jl> Telerhony." B••ll Lobs
`7<-chnico/ Joumul. Oct-De.;. 199!1, pp. t92-207
`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 5 of 24 PageID 37
`
`Bright House Networks - Ex. 1001, Page 4
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 6 of 24 PageID 38
`
`U.S. Patent
`
`Apr. 10,2012
`
`Sheet 1 of 11
`
`US 8,155,298 B2
`
`~~0 m~ ::l-
`
`CJ)
`
`.E
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`CJ)o
`.... 0
`::l 0 o-
`(I) e
`(1)0.
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`CJ
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`
`Bright House Networks - Ex. 1001, Page 5
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 7 of 24 PageID 39
`
`U.S. Patent
`
`Apr. 10,2012
`
`Sheet 2 ofll
`
`US 8,155,298 B2
`
`"'
`
`"
`OO:;E "'
`"
`
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`Bright House Networks - Ex. 1001, Page 6
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 8 of 24 PageID 40
`
`Subscriber Registration and Login
`
`User views
`information on
`becoming a
`ubscriber lncludln
`features and
`charges.
`
`User provides personal
`data including login name
`and password and credit
`card information.
`
`Sample
`
`Simple
`e~perimentation
`with features
`such as web
`dialing
`
`User accesses web
`site UIS (User
`Interaction System)
`
`FIG. 3A
`
`Yes
`
`User logs in (apply
`standard forgotten
`password procedures).
`
`System displays
`Subscriber's private
`Information page.
`
`User views messages,
`changes configuration,
`modifies mail lists, etc.
`
`User enters a tentative
`PPN, system checks local
`database for availability
`
`User selects "Vanity"
`PPN (Extra Cost Option).
`
`No
`
`Yes
`
`~ • rJ)
`• -= ~ ....
`~ = ....
`
`>
`
`...
`
`"C :s -=
`N = -N
`t'n =
`f'l) -~
`""' --
`
`f'l)
`
`0
`
`Bright House Networks - Ex. 1001, Page 7
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 9 of 24 PageID 41
`
`-----------------------------------------
`System selects
`PPN.
`
`System selects PPN
`from local database.
`
`Acronyms
`PPN - Public Phone Number allocated by oneCioud (known to public,
`on business cards, etc., rings oneCioud).
`LPN - Local Phone Number from local telco (rings (Jser's phone but
`is only known to oneCioud and local telco).
`UIS - User Interaction System - web site user interfaces with In
`order to control phone features.
`TAC- Tandem Acces Controller- System that directly accesses
`the PSTN.
`
`FIG. 38
`
`FIG.3A
`
`FIG. 38
`
`FIG. 3
`
`---- ---_-, ---------
`System sends provisioning
`packet to PSTN Controller.
`J
`Controller acknowledges
`provisioning packet.
`I
`User's new PPN and login name
`are acknowledged and User Is
`welcomed as a new Subscriber
`1
`Done
`
`>
`
`'C
`
`:"' -=
`
`...
`
`Bright House Networks - Ex. 1001, Page 8
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 10 of 24 PageID 42
`
`Incoming Message Processing for
`PSTN Tandem Access Controller
`
`Send to
`appropriate
`Protocol
`Conversion
`subsystems.
`
`Acronyms
`PPN • Public Phone Number allocated by oneCioud
`(known to public, on business cards, etc., rings oneCioud).
`LPN • Local Phone Number from local telco (rings user's
`phone but is only known to oneCioud and local telco).
`UIS • User Interaction System - web site user interfaces
`with In order to control phone features.
`TAC ·Tandem Access Controller- System that directly
`Control Packet accesses the PSTN.
`.---------~~~~~~
`Assemble Signaling and Control
`Message (from Packets)
`
`Process VoiP
`control messages.
`
`VoiP H.323
`Control Message
`
`Call Control
`Messages
`Invalid call
`Control
`Request
`
`UIS Provisioning Message
`
`Invalid
`Database
`Request
`
`Database
`Updated
`
`Send acknowledgement
`message to UIS
`
`Perform invalid
`message analysis
`and security check
`
`FIG. 4
`
`Bright House Networks - Ex. 1001, Page 9
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 11 of 24 PageID 43
`
`U.S. Patent
`
`Apr. 10,2012
`
`Sheet 6 of I I
`
`us 8,155,298 82
`
`Inbound Call {to Subscriber)
`
`Receive Incoming Call
`Request (SS7) from
`PSTN Tandem Office.
`
`Fonnat Message: Incoming Call
`Request (incluaing called PPN,
`caller 10, channel#, etc.)
`
`Look up Calling and Calfeq
`Parties in Database.
`
`No
`'">-------1 Refuse call.
`
`Look up Subscriber specified parameters
`in database. Determine if additional
`information Is required from caller.
`
`IVA Subsystem
`obtains information
`:>-....;.Y..;;.e.;;..s __ ---l(e.g. collect password
`from caller, etc.).
`
`Determine outbound calling number: Look
`up Subscriber Conditional Call Forward
`information (e.g. time-of-day, day-of-week,
`caller ID, caller password, etc.).
`
`Send Call Request (SS7)
`to PSTN Tandem.
`
`Yes
`
`Yes
`
`FIG. 5
`
`Bright House Networks - Ex. 1001, Page 10
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 12 of 24 PageID 44
`
`U.S. Patent
`
`Apr. 10,2012
`
`Sheet 7 of11
`
`us 8,155,298 82
`
`Outbound Call (from Subscriber)
`
`Subscriber enters or clicks on
`Outbound Called Number at UIS
`and indicates which Subscriber
`number call is to be placed from
`(e.g. cell or home number)
`
`via phone
`User goes
`off "hook"
`on phone
`
`CO processes
`dialing and
`look up
`
`Send messages to
`UIS- Subscriber
`Phone Not
`Answering
`
`Yes
`TAC places call to
`outbound number and
`connects the two.
`
`manner
`
`FIG. 6
`
`Bright House Networks - Ex. 1001, Page 11
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 13 of 24 PageID 45
`
`N = -N
`
`/
`
`16 ___.:
`
`PSTN
`TANDEM SWITCH
`
`/I
`
`v
`
`/
`
`PSTN
`16-- TANDEM SWITCH
`
`/
`
`1/
`
`32
`
`Cell Switch
`
`:
`
`17--
`
`. . .
`. &30
`. . . . . . . . . . .
`
`lrir-28
`
`co
`.___ ___ v
`
`/ _ _ / ._ / 01f--~-"-TA_C___,o 101 TA: o ~---~/
`\
`I
`
`18--
`
`co
`
`...__ _ _ _.,V
`
`FIG. 7
`
`o'@!
`"1:-20
`
`Bright House Networks - Ex. 1001, Page 12
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 14 of 24 PageID 46
`
`WEB
`
`FIG. 8
`
`PSTN
`TANDEM SWITCH
`
`'-FAX & Modem/
`"" Calls
`/
`
`10-f TAC 0
`
`40
`
`-p
`Q -N
`
`N
`
`co
`
`~/ ___ -f/1
`
`17---
`
`co
`
`'-----'
`
`1/
`
`ISP Dial-up
`".
`· ·. CO Trunks
`
`.*
`
`• •
`
`Dial-up
`Modem
`14~0~
`12~
`
`ISP~
`
`Bright House Networks - Ex. 1001, Page 13
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 15 of 24 PageID 47
`
`U.S. Patent
`
`Apr. 10,2012
`
`Sheet 10 of II
`
`us 8,155,298 82
`
`CALLER ID (CID) FLOWCHART
`
`74
`
`ObtainCID
`From Caller
`
`Yes
`
`Prompt Caller
`To Wlb)ock
`
`Lookup
`CID tag
`
`r-----~~----~~6 No
`
`Display tag infonnation
`on web page
`
`Display Name and Number
`on web page
`
`Translate Number
`
`Ring Phone
`
`Send CID to subscriber
`
`FIG. 9
`
`No
`
`Block call or
`Send to Voiccmail
`
`Bright House Networks - Ex. 1001, Page 14
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 16 of 24 PageID 48
`
`U.S. Patent
`
`Apr. 10,2012
`
`Sheet 11 of II
`
`us 8,155,298 82
`
`Branch Calling Flow Chart
`so
`
`Incoming Call
`
`82.
`
`87)
`Block
`Call
`
`No
`
`'\2.
`
`No
`
`No
`
`Supervision
`
`Abandon
`Call
`
`Abandon
`Call
`
`\09
`
`\\0
`I
`
`Return Answer
`Supervision
`
`Abandon Other
`Calls
`
`Connection
`
`Connection
`
`FIG. 10
`
`Bright House Networks - Ex. 1001, Page 15
`
`

`
`Case 3:15-cv-00742-TJC-MCR Document 1-2 Filed 06/19/15 Page 17 of 24 PageID 49
`
`us 8,155,298 82
`
`1
`TANDEM ACCESS CONTROLLER WITIUN
`TilE PUBLIC SWITCHED TELEPHONE
`JliETWORK
`
`CROSS REFERENCI: TO REI.AJ'ED
`AI'PLICATIONS
`
`"lltis application is a continuation of U.S. upplication Ser.
`No. I 0/426,279, tiled Apr. 30. 2003. entitled "Br.mch Calling
`:md Caller ID Based Call Routing Telephone Featurt:s."
`which is a I."Ontinuation·in-pan of U.S. application Scr. No.
`09/565.565.now U.S. I'm. No. 6,574,328.1ih:d May 4, 2000,
`entitled "Telephone Call Control System lor the Public
`Switched "lelephone Network," both documents being incor(cid:173)
`porated herein by reference.
`
`FIELD OF THE INVENTION
`
`2
`In the edge dt.-vices residing in the PSTN central ollices, the
`1st party (the calling party) has numerous lcatures available
`(dialing options). The 2nd party (called party) also has
`options av:~ilable such as call fbrwarding. but these Icatures
`~ typically rt.-quire accc.'SS from the lirst or second party's device
`and arc extremely awkwurd to pmgr.un. ")be user intero~ction
`is mll only awkward. it is limit~o-d :md requires interactimt with
`the telt.-phone comp:my to pmvision them. In other words.
`past :;y:;tems for provisioning. meaning addition. modifica·
`tu tion. or control oftel!.-phone leatur~o'S, r~o-quin:d a sub~criber to
`make the leature sek-ction through the tel~o-phone business
`(lffice. Central office workers would then implement the pro·
`visioning wtder request of the business ollice.
`Call Forw<lrding is one popular provision. "lb~:rc is signi·
`IS Jication transmission d~o'gJ<ldation lor Call Forwarding to take
`pla1.-e. The culling party puys for u call to the edge d~o-vice,und
`the edge subscriber, the called party. pays lor the call to the
`forwarding number. For enhan~o'l.>d inbound call control to
`occur, a direct 3rd·party call control meuns is needed.
`A variety of services have arisen to addrt.'SS the pn1blems
`mentioned above. Many of th~o-se systems :tlluw thc calk-d
`party to make changes to his/her call forwarding attributes
`which do not allow direct 3rd-party call control. llt~o-se ser·
`vices provide good user interaction. some via the internet. but
`25 they rely upon the toll network through the use of "800"
`numbers.
`This requires the subscriber to pay by the minute and does
`not allow the subscriber to take :~dvantage of number port(cid:173)
`ability in order to obtain 3rd-party call control. There are
`JO other toll network mi!Chanisms lor remote call lbrwarding.
`For example, MCI ollers a service where the custom~:r cwt
`remotely clumge the lorwurding target nwnber for "800"
`munbcrs. Contacting the ultimate end-user bclbrc tcrminat·
`ing the first incoming call is similar to the manner in which
`JS "MOO" credit c<tlls undc(111ect calls ureprt1Ccss~o-d. but these nrc
`not done at the local subscriber level.
`In addition to these toll services. there arc t.-dgc dcv1ccs that
`perlorm some of the same services. Edge d~o-vices such as
`phones and PBXs th:tt include voice m<~il. inter-<~ctivc vuicl.'
`response, call forwarding. spiX.>d calling. etc .. have been used
`to provide additional call control. These di.'Vices allow the
`phone user direct control over incommg and outgoing calls.
`The disadvantage of ~o>dge devices is that they add cost,
`dcgrade voice and tmnsmission quality. can be dillicult to
`program. are not easily progranun~o>d remotely, can require the
`us~:r to pay for two lines, provide lower quality of service, and
`c1mnot provide the same level of lunctionulity as a system that
`controls the PSTN dir~o'Ctly. There are 'voice Over Internet
`Protocol (VoiP) products emerging that provide better user
`interfaces and control but they do not take ndvamage and
`voice quality of the PSTN.
`
`"lltis invention relates to telephone services and, in particu- 20
`Jar, to a system lor allowing a subscriber to seh:ct featurt.'S of
`the subscriber's telephone service and to vurious novel fea(cid:173)
`tures that can be sek-cted.
`
`BACKGROUND
`
`Pt.>ople have used various means lilt limiting interruptions
`due to the telephone. In the past, people used switchboards
`and secretari~o'S to screen incoming, or inbound. calls. Voice
`mail systems took over some of this role both in the home and
`in the centr.tl office. Today, there are web-based companies
`managing 3rd·party call control, via the toll-switch network,
`which allow users to enter call control inlormmion through a
`web portal. Th~:re arc also edg~: d~o-vices in each oftbl.' public
`telephone company's central offices which provide local con(cid:173)
`trol, but olli:r an extremely limitoo number of lcatures and do
`not provide true 3rd·party call control.
`"llte web-based toll syst~:ms pruvid~: good user interaction
`hut th~!J are not economical and cannot take :tdvantage of
`local number portability because they do not provide local 4o
`control and connectivity.
`'llte Public Switched Telephone Network (PSTN) consists
`of a plurality of edge switches cmmected to telephones on one
`side and to a network of twtdem switches on the other. The
`tandem :;witch network allow:; connectivity betw~ooen all of the 4S
`edge switch~o-s, and a signaling system is used by the PSTN to
`allow calling and to transmit both calling and called party
`identity.
`Until now, optional leatures were providt.>d by the local
`service telephone comp<my (tel co) through the edge switch at so
`the central ollicc (CO).It was not possible to provide optional
`features through any other means. Control of these features
`was d