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101-1620-005 Octel Unified Messenger Concepts and Planning Guide.
Y our commen ts on this documen t are welcome. The y can assi st us i n impro ving our pro ducts. Please address comments to: Unified Messeng er Documentation T eam Lucent T echnologies, Octel Messaging Div ision 1001 Murp hy Ra nch Road Milpitas, CA 95035-791 2 USA +1 408-32 1-200 0 http://www .
101-1620 -005 iii Preface Overvie w This guide pro vide s: n Guidelin es for planning and siz ing a n ew i nstal lation. n A des crip tio n of th e ha rdwa re a nd s oft ware c omp one nts o f Oc tel Unified Me sseng e r .
Octel Unified Mess enger Con cepts & Plann ing G uide iv 101-16 20-005 Octel Unified Messenger documentation See the f ollo wing documentati on for more in formation abou t Octel Unified Me sseng er: Instal lation Guide, 1 01-1621-005 Prov ides informatio n on the insta llation proce ss.
Prefac e 101-1620 -005 v Unified Messenger Online Suppor t F or Octel Uni fied Mes senger support, contact your Octel Unif ied Messeng er support repr esentati ve. F or impor tant, up-to-dat e information on Octel Unif ied Messenge r, see the R ea dme file av a ilab le on t h e Oc te l Un i fied Mes se ng er CD-ROM.
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Contents vii 101-1620 -005 Chapter 1 Introducing Octe l Unified Messe nger Introduct ion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Product fea tures . . . . .
Octel Unified Mess enger Con cepts & Plann ing G uide viii 101- 1620-00 5 Hardwar e and software r equirements for Octe l Unified M essenger se rvers . . . . . . . . . . . . . . . 2-10 Ev aluating the ad ditional l oad on Microsoft Exchang e servers .
Contents ix 101 -1620 -005 Addressi ng OctelNet messages to Octel Unif ied Messenger recipients . . . . . . . . . . . . . . . . . 5-7 Prov i ding sin gle-site i nteroperability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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PAR T 1 CONCEPT S.
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101-1620 -005 1-1 1-1 1 Intr oducing Octel Unified Messeng er This chap ter introdu ces Octel Unif ied Messenge r and discusses the follo w ing topics : n Octe l Unified Me sse nge r p rod uct fe atu res . n The “unif i ed mailbox” conce pt. n Networ ked components of the Octel Unif ied Messeng er en vironment.
Octel Unified Mess enger Con cepts & Plann ing G uide 1-2 101-16 20-00 5 Intr oduction T oday e-mail, v oice mail , and fax are e stablished as s trategic , enabling technol ogies at companie s large and small. As a result , people are recei ving both a larger v olume and mor e types of messages than e ver before.
Introduc ing Oc tel Uni fied Me ssen ger 101-1620 -005 1-3 Pr oduct features OMD u ses the next-g en er atio n cl ien t/se rver m ess agi n g sy stem Mic ros oft Exchange Se rver to deliv er a truly unif ied messagin g archite cture that meets the mission-critica l demands of e ven th e largest organiza tion.
Octel Unified Mess enger Con cepts & Plann ing G uide 1-4 101-16 20-00 5 The unified mai lbo x F or each Oct el Unifie d Messenger subs criber , all v oice mail, te lephone answerin g, e-mail, fax, and data messages ( including document s and forms) a re stored in th e unified m ailbox.
Introduc ing Oc tel Uni fied Me ssen ger 101-1620 -005 1-5 T eleph one u ser in terf ace Subscri bers can access t heir unif ied mailbox from a telephone user interf ace to do t he follo wing: n Send and r eceiv e voic e messages. n Play back voice mes sages.
Octel Unified Mess enger Con cepts & Plann ing G uide 1-6 101-16 20-00 5 Netw orke d components Figure 1-2 show s the ne tworked components of the Octel Unified Messeng er en vironment.
Introduc ing Oc tel Uni fied Me ssen ger 101-1620 -005 1-7 V o ice server The v oice serv er is a Wi ndows NT -based system that is t he inte gral link between t he LAN and the tel ephone network . It performs the follo wing functi ons: n Answ e rs P BX- forw ar ded tele p hon e call s.
Octel Unified Mess enger Con cepts & Plann ing G uide 1-8 101-16 20-00 5 can gener ate reports su m marizing v oice mail ac tivity using the Octe l Unif ied Messenger Repo rting T ool applicati on.
Introduc ing Oc tel Uni fied Me ssen ger 101-1620 -005 1-9 Access to f axes using the TUI The tele phone user inter face recogni zes messages of t he message type IPM.
Octel Unified Mess enger Con cepts & Plann ing G uide 1-10 101-16 20-00 5 LAN The LAN pro vides a high-s peed (minimum 10 Meg abit per second switched ) connection between serv ers and clie nt systems. Octel U nified Messenger supports Et hernet and t oken ri ng based LAN topol ogies.
Introduc ing Oc tel Uni fied Me ssen ger 101-1620 -005 1-11 Benefits summary Octe l Unified Mess e nge r pr ovid es t he fol l owin g ben efits to yo ur or ganization. Subscriber con venience W ith Octel Unified Me ssenger , subscriber s can: n Store al l messages in one place, re gardless o f the message t ype.
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PAR T 2 PLANNING.
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101-1620 -005 2-1 2-1 2 Sizing the system This chap ter discuss es the ma in points to consider when sizing the hardw are for Octel Unif ied Messenger . It contains infor mation about: n V oice mail domain de sign rules. n Establi shing the number of voice ports required .
Octel Unified Mess enger Con cepts & Plann ing G uide 2-2 101-16 20-00 5 Intr oduction Sizing t he hardware for Octel Unif ied Messen ger in volv es the fol lo wing steps: 1. Designin g the voi ce mail domain structure for the org anizati on. 2. Calculat ing the number of voice po rts required.
Sizi ng the system 101-1620 -005 2-3 Design ru les f or v oice mail do mains Designin g voice mail domains (VMDs) is ve ry simila r to designing domain s in Microsoft NT . When des igning Octel Un ified Me ssenger v oice mail do mains, t he follo w ing rul es must be observ ed.
Octel Unified Mess enger Con cepts & Plann ing G uide 2-4 101-16 20-00 5 Sizing po r ts Accurate port sizing is critical to the successf ul implementatio n of any voi ce processing applicatio n. A careful ana l ysis of syste m traf fic pat terns must be ma de.
Sizi ng the system 101-1620 -005 2-5 Units of measurement f or bu sy hour t raffic Busy hour t raff ic is normal ly expresse d in units of measure ment suc h as minutes, Er langs, or Centum Call S econds (CCS). Note: 1 CCS = 100 call seconds. F or exa m ple, th ere are 3,600 seconds in 1 hour .
Octel Unified Mess enger Con cepts & Plann ing G uide 2-6 101-16 20-00 5 T o co n vert this tota l into cal l mi nut es, divid e by 60 : 67,500/60 = 1,125 call min utes. T o con vert t his tot al into Er langs, di vide by 36 00: 67,500/360 0 = 18.
Sizi ng the system 101-1620 -005 2-7 PBX integration device sizing As descri bed in “PBX inte gration” on page 3-10, PBX inte grations are accompli shed by dif ferent met hods dependi ng on the PBX type and the capabil i ties of the PBX.
Octel Unified Mess enger Con cepts & Plann ing G uide 2-8 101-16 20-00 5 T o ta l est ima ted p or t requireme nts T o summariz e, when sizing the number of tota l ports r equired for an y gi ven ser ver to pro vide a desi red GOS, the follo wing f actors must be consider ed.
Sizi ng the system 101-1620 -005 2-9 Calculating the number of v oice se rv ers required Havi ng established the total n umber of voic e ports, it is possib le to calcul ate the minimum numb er of v oice serv ers needed.
Octel Unified Mess enger Con cepts & Plann ing G uide 2-10 101-16 20-00 5 Har d ware and software requirements f or Oc tel Unified Messeng er serv ers Octel Uni fied Messen ger serv ers requi re the foll ow ing confi guration: Minim um voice server requirement s n F or systems using 4 to 12 po rts: 200 MHz I ntel Pentium.
Sizi ng the system 101-1620 -005 2-11 Minim um tracing server requirement s n For sys tem s w ith up t o 2 voice se rvers : 200 MH z Int el P en tiu m. F or systems with more than 2 vo ice ser vers: 400 MHz Intel Pentium n 64 Mb ytes RAM. n Acce ss to a CD-ROM drive to inst all t he s oftwar e.
Octel Unified Mess enger Con cepts & Plann ing G uide 2-12 101-16 20-00 5 Ev aluating the additional load on Micr osoft Exchange ser vers Impl emen tin g O ct el U nified M ess en ge r affects th e ac tivity of the Exchange s ervers a nd the dis k space usage.
Sizi ng the system 101-1620 -005 2-13 Disk space requireme nts V oice messages require 4 Kby tes per second ( 240 Kbytes p er minute) of space fo r storage. Subscribe r mailb o xes A subscri ber who recei ves f iv e voic e messages per day , with an a verage message l ength of 60 seconds , requires 1.
Octel Unified Mess enger Con cepts & Plann ing G uide 2-14 101-16 20-00 5 Ev aluating the additional netw ork traffic Impl emen tin g O ct el U nified M ess en ge r res ul ts in the fl ow of voice da ta ov er the or ganizati on’ s data net work.
Sizi ng the system 101-1620 -005 2-15 T ypes of operations The Octel Unifie d Messenge r voice se rvers op en data streams b etween v oice se rvers an d: n Exchange s ervers.
Octel Unified Mess enger Con cepts & Plann ing G uide 2-16 101-16 20-00 5 Using Octel Unified Messeng er via slow n etwork connections Octel Uni fied Messen ger applicatio ns move voi ce messages betw een Octel Uni fied Messen ger client s ystems and: n Octe l Unified Me sse nger voic e se rver s.
Sizi ng the system 101-1620 -005 2-17 Using the telephone V oice messages can be pla yed back and re corded using the t elephone. Pl ay i n g b a ck voi c e messages When pla ying back a voice messa ge, the message is mo ved f rom the Exchange s erver to a t elephone via the v oice serv er .
Octel Unified Mess enger Con cepts & Plann ing G uide 2-18 101-16 20-00 5 Recor ding voice messages When re cording v oice messa ges, the data must be copied fr om the voice serv er to the cli ent PC via slo w network connections. I t is st ored on the client PC until t he record ing is stopped.
Sizi ng the system 101-1620 -005 2-19 The effect of slo w netw ork connections on O ctel Unified Messenger applications This sec tion lists al l Octel Unif ied Messenger app lications and h ow each is af fected b y slo w netw ork connections .
Octel Unified Mess enger Con cepts & Plann ing G uide 2-20 101-16 20-00 5 Octel Un ified Messenger inter operability with thir d-par ty fax se rvers This sec tion descri bes ho w third-part y f ax serv e rs in teroperate wit h Oct el Unified Me sse nge r .
Sizi ng the system 101-1620 -005 2-21 Requirements f or thir d-par ty fax server interoperability with Octel Unified Messenger The fo llo wing are the requirements for third-par ty fax se rver inter ope ra bil ity wi th Oc tel U nified Me sse n ger : n Octel Uni fied Messeng e r version 2.
Octel Unified Mess enger Con cepts & Plann ing G uide 2-22 101-16 20-00 5 Routing inbound fax calls to the third-party fax server Like v oi ce cal ls, f ax ca lls placed to a su bscri ber’ s e xtens ion are redir ected to the Octel Unif ied Messeng er v oice serv er when the se calls encounter a ring-no -answer or b usy conditio n.
101-1620 -005 3-1 3-1 3 System ar chitecture This chap ter introdu ces the Octel Uni fied Mess enger system a rchitec ture and descr ibes some of its key co ncepts, such as t he voice mail domain (VMD) and addressing mechani sms. This chapter also contains a list of the main s ystem components, in cluding client , server , and telephon y .
Octel Unified Mess enger Con cepts & Plann ing G uide 3-2 101-16 20-00 5 Intr oduction This sec ti on introduce s t he con cept of a v oice mail d omain, as well as the v arious methods that subs cribers can use to address v oice message s.
System archite cture 101-1620 -005 3-3 1P B X 2 Sub scribers VMD1 3 Octel Tracing Ser ver for V MD1 4 Octel V o ice S erver 5 Octel Tracing Ser ver for V MD2 6 Microsof t Exchan ge ser ver 7 Sub scribers VMD2 Figure 3-1.
Octel Unified Mess enger Con cepts & Plann ing G uide 3-4 101-16 20-00 5 Addre ssing messa g es When sen ding voi ce messages, su bscribers e nter reci pients’ addre sses dif ferently de pending on whether they use t he PC user i nterface or t he telepho ne user inte rface.
System archite cture 101-1620 -005 3-5 System components The syste m components of Oct el Unif ied Messenger are classif ied in three c ategori es: n Client c omponents n Serv er components n T elepho.
Octel Unified Mess enger Con cepts & Plann ing G uide 3-6 101-16 20-00 5 PC access From a desk top PC, subscrib ers and administ rators can use t he follo wing Octe l Unified Me sse nger a ppl ica ti ons .
System archite cture 101-1620 -005 3-7 Administrat ion applicati ons System admi nistrators ca n use the follo w ing appl ication s and tools to manage Octe l Unif ied Messenger . V o ice Mail Sy stem Configura tion This appl ication displ ays property pages for conf iguring and mai ntaining the v oice mail syste m.
Octel Unified Mess enger Con cepts & Plann ing G uide 3-8 101-16 20-00 5 Server components Octel Uni fied Mes senger add s two types of servers, the voi ce serve r and the tra cing server , to th e Micros oft Exchang e Server en vironme nt.
System archite cture 101-1620 -005 3-9 T racing server A tracin g server maintains connections with all v oice serv ers in a v oice mail domai n, and performs the follo wing tasks: n Collect s the ev .
Octel Unified Mess enger Con cepts & Plann ing G uide 3-10 101-16 20-00 5 PBX integr ation Calle rs w h o ar e fo rward ed t o a voice server ca n le ave a mes sa ge f or th e called party without ad ditional inter vention.
System archite cture 101-1620 -005 3-11 Digital Meri dian Integrati on De vice The Digit al Meridi an Inte grat ion De vice ( DMID) is a de vice that pro vides inte gration with Nor t hern T elecom switc hes, such as the Mer idian SL-1.
Octel Unified Mess enger Con cepts & Plann ing G uide 3-12 101-16 20-00 5 A udio encoding f ormats Octel Uni fied Messen ger supports the followi ng audio encoding f ormats: n ADPCM audio enco ding format. This i s a high qu ality audio encoding algorithm with a c oding rate of 32 kilobit per second.
101-1620 -005 4-1 4-1 4 Designing addressing schemes This chap ter introdu ces diff erent forms of a ddressing and describes the follo w ing addr essing sc hemes: n Local mail box number .
Octel Unified Mess enger Con cepts & Plann ing G uide 4-2 101-16 20-00 5 Intr oduction Octel Uni fied Mes senger subscrib ers can use di f ferent forms of addr essi ng: From the PC user interface Subscri bers use the Mi crosoft Excha nge direct ory for address ing messages.
Designin g addr essing sche mes 101-1620 -005 4-3 Local ma ilb o x numbers Local mailb ox number s ar e use d to addr es s an y Octel Unif ied Messenger subs crib er in a voice ma il do m ai n fro m the tele ph on e u ser i nt erfac e. T radit i ona l voice mail syst em s ty pica lly us e th is fo rm of add res sin g.
Octel Unified Mess enger Con cepts & Plann ing G uide 4-4 101-16 20-00 5 Dial-b y-Name Dial-b y-Name is a met hod of addr essing messages b y spelli ng the recipi ent’ s name using t he key s on the t elephone ke ypad.
Designin g addr essing sche mes 101-1620 -005 4-5 Numeric a ddresses A numeri c address enables subscri bers to address any Octel Unif ied Mess en ger r eci pien t in an o rgani zat io n . Ever y Octel Unif ied Messeng er recip ient must be assi gned a unique numeri c address .
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101-1620 -005 5-1 5-1 5 Pr o viding inter operability with e xisting Octel ser ver s This chap ter describes how e xisting Octel servers ca n communicate with Octe l Unified Mess e nge r . I t int roduc es Oc tel Net , OMD’s solution f or vo ice net working bet ween Octel servers .
Octel Unified Mess enger Con cepts & Plann ing G uide 5-2 101-16 20-00 5 Intr oduction to OctelNet ™ OctelNet is a networki ng application t hat allo ws users on one OMD system to exchange me ssages wit h users on other OM D systems.
Provid ing in teroper abili ty with ex isti ng Octel serve rs 101-1620 -005 5-3 Octe lN et M e ssag i n g F e at u re s When sen ding or recei ving messa ges via Oct elNet, subscrib ers can: n Mark message s as urgent . n Request mes sage conf irmati on.
Octel Unified Mess enger Con cepts & Plann ing G uide 5-4 101-16 20-00 5 Designing an OctelNet addressing sc heme F or messages to be sent vi a the OctelNe t gate way , the adminis trator must set up an OctelNet address ing scheme. If required, mult iple addres sing schemes ca n be set up for a single OctelNet node.
Provid ing in teroper abili ty with ex isti ng Octel serve rs 101-1620 -005 5-5 OctelNet ad dressing scheme des i gn rules When des igning OctelNet a ddressing sc hemes, the follo wing rul es must be obser ved. n The mailbo x length must be gr eater than or eq ual to 3 digits .
Octel Unified Mess enger Con cepts & Plann ing G uide 5-6 101-16 20-00 5 Sample ad dressing schemes T able 5-1 sho ws exampl es of val id OctelNet addre ss schemes. T able 5-2 sho ws exampl es of in va lid OctelNet multiple a ddressing sc hemes. T able 5-1.
Provid ing in teroper abili ty with ex isti ng Octel serve rs 101-1620 -005 5-7 Addressing OctelNet messages OctelNet addresses pro vide a means o f sending v oice messages to recipi ents on a v oice messagi ng server that suppor ts OctelNet ne tworking, such as any OMD O cte l Mes sag e Se rver .
Octel Unified Mess enger Con cepts & Plann ing G uide 5-8 101-16 20-00 5 Pr ov iding single-site inter operability Although Oc telNet is gener ally used to li nk multiple sites, it can also be used to e xchange messages bet ween Octel Uni fie d Messenge r subscri bers and Octel message serv er users at the same site.
101-1620 -005 6-1 6-1 6 Connecting wi th the PBX and establishi ng security rules This chap ter introdu ces the foll ow ing: n Ho w to connect wit h the PBX.
Octel Unified Mess enger Con cepts & Plann ing G uide 6-2 101-16 20-00 5 Connecting wi th the PBX Using th e V oice Mail System Conf iguration a pplicat ion, an admini strator can spec ify the para m eters necessary to enable PBX inte gration to the voi ce serv er .
Connecti ng with the PBX a nd est ablishi ng secur ity rules 101-1620 -005 6-3 Establishing security rules Octe l Unified Mess e nge r offers several fe atu res th at re duce the risk of fraudul ent long distan ce charg es, uninte nded disclos ure of conf idential informat ion, and decre ased performance of the v oice ser vers.
Octel Unified Mess enger Con cepts & Plann ing G uide 6-4 101-16 20-00 5 Subscriber pass w ord f or the telephone us er inte rfa ce Octel Uni fied Mes senger subscrib ers maintain a password f or access ing their v oice mail through the telephone us er interfa ce.
Connecti ng with the PBX a nd est ablishi ng secur ity rules 101-1620 -005 6-5 The admini strator can al so enable pas s word ex piration that forces subscri bers to change pa sswords at pre determined time i nterval s. Changing p asswords pe riodically r educes the c hances of an una uthorized user ga ining access to a subsc riber’ s mailbox.
Octel Unified Mess enger Con cepts & Plann ing G uide 6-6 101-16 20-00 5 Recipient’ s name confirma tion Octel U n ified Me ss eng e r co nfirms th e na m e o f th e re cipie nt b efore sending a voice me ssage fro m one subs criber to anot her .
101-1620 -005 A-1 A Appendix A - Sizing f or por ts This appe ndix giv es guidel ines for estimat ing how man y users ca n be support ed with a gi ven number of v oice ports.
Octel Unified Mess enger Con cepts & Plann ing G uide A-2 101- 1620-00 5 Calculating the number of supported subs cribers T able A-1 through T able A-18 can be use d as guidel ines for esti mating ho w many use rs can be sup port ed with a gi ven number of port s, based on av erage dai ly port u sage per subs criber .
Append ix A - Sizi ng for ports 101-1620 -005 A-3 T able A-2. Number of su ppor ted subscribe rs with eight ports A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of daily calls.
Octel Unified Mess enger Con cepts & Plann ing G uide A-4 101- 1620-00 5 T able A-3. Number of su ppor ted subscribe rs with twelve ports A v erag e us age per subscriber p er day (minutes ) Busy .
Append ix A - Sizi ng for ports 101-1620 -005 A-5 T able A-4. Number of su ppor ted subscribers w ith sixteen ports A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of daily cal.
Octel Unified Mess enger Con cepts & Plann ing G uide A-6 101- 1620-00 5 T able A-5. Number of su ppor ted subscribe rs with twenty ports A v erag e us age per subscriber p er day (minutes ) Busy .
Append ix A - Sizi ng for ports 101-1620 -005 A-7 T able A-6. Number of su ppor ted subscriber s with twenty-f our por ts A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of dai.
Octel Unified Mess enger Con cepts & Plann ing G uide A-8 101- 1620-00 5 T able A-7. Number of su ppor ted subscribe rs with tw enty-eight ports A v erag e us age per subscriber p er day (minutes .
Append ix A - Sizi ng for ports 101-1620 -005 A-9 T able A-8. Number of su ppor ted subscriber s with thirty-two ports A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of daily .
Octel Unified Mess enger Con cepts & Plann ing G uide A-10 101- 1620-00 5 T able A-9. Number of su ppor ted subscribe rs with thir ty-six ports A v erag e us age per subscriber p er day (minutes ).
Append ix A - Sizi ng for ports 101-1620 -005 A-11 T able A-10. Number of supported subscrib ers with f or ty ports A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of daily cal.
Octel Unified Mess enger Con cepts & Plann ing G uide A-12 101- 1620-00 5 T able A-11. Number of s upported subscrib ers with fo r ty-fou r ports A v erag e us age per subscriber p er day (minutes.
Append ix A - Sizi ng for ports 101-1620 -005 A-13 T able A-12. Number of suppo r ted subscrib ers w ith fo r ty-eight ports A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of .
Octel Unified Mess enger Con cepts & Plann ing G uide A-14 101- 1620-00 5 T able A-13. Number of suppo r ted subscriber s with fifty-tw o por ts A v erag e us age per subscriber p er day (minutes .
Append ix A - Sizi ng for ports 101-1620 -005 A-15 T able A-14. Number of suppo r ted subscriber s with fifty-six ports A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of daily.
Octel Unified Mess enger Con cepts & Plann ing G uide A-16 101- 1620-00 5 T able A-15. Number of supported subscrib ers with sixt y ports A v erag e us age per subscriber p er day (minutes ) Busy .
Append ix A - Sizi ng for ports 101-1620 -005 A-17 T able A-16. Number of suppo r ted subscrib ers w ith sixty-f our ports A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of da.
Octel Unified Mess enger Con cepts & Plann ing G uide A-18 101- 1620-00 5 T able A-17. Number of suppo r ted subscrib ers w ith sixty-e ight por ts A v erag e us age per subscriber p er day (minut.
Append ix A - Sizi ng for ports 101-1620 -005 A-19 T able A-18. Number of s upported subscrib ers with se venty-two ports A v erag e us age per subscriber p er day (minutes ) Busy hour pe ak (% of dai.
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101-1620 -005 B-1 B Appendix B - Grade of service This appe ndix illustra tes the maximum amount o f busy ho ur traf fic support ed by a gi ven numbe r of ports for each grade of service ( GOS).
Octel Unified Mess enger Con cepts & Plann ing G uide B-2 101- 1620-00 5 Calculating b usy hour traffic T able B-1 through T a ble B-4 show t he maximum amount of b usy hour traf fic supported b y a gi ven n umber of ports for each grade of se rvice.
Appen dix B - Grade of servi ce 101-1620 -005 B-3 T able B-2. Maxim um busy h our traffic supported fo r a GOS of P .02 P o r ts Erla ngs C CS Minut es 41 . 0 8 3 9 6 5 . 0 0 8 3.61 130 216.67 12 6.61 238 396.67 16 9.81 353 588.33 20 1 3. 17 474 790. 00 24 1 6.
Octel Unified Mess enger Con cepts & Plann ing G uide B-4 101- 1620-00 5 T able B-3. Maxim um busy h our traffic supported fo r a GOS of P .03 P or ts Erla ngs CCS Min utes 41 . 2 5 4 5 7 5 . 0 0 8 3.97 143 238.33 12 7.14 257 428.33 16 10.50 378 630.
Appen dix B - Grade of servi ce 101-1620 -005 B-5 T able B-4. Maxim um busy h our traffic supported fo r a GOS of P .05 P orts Erlangs CCS Minutes 4 1.50 54 90.00 8 4.53 163 271.67 12 7.94 286 476.67 16 11.53 415 691.67 20 15.22 548 913.33 24 19.03 685 1141.
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101-1620 -005 GL-1 Glossary access co ntrol list A list o f people in a v oice mail domai n who hav e access to Oct el Unifie d Messenger appl ications and tool s. AccuCall+ A Rhetore x utility f or W indo ws NT and W indo ws 95 that allo ws you to b uild and edi t tone tables.
Octel Unified Mess enger Con cepts & Plann ing G uide GL-2 101-1620- 005 Centum Call Second (CCS) A uni t of m easu r em ent f o r cal l tim e . T he for mula for a C CS is the numb er o f ca lls per hour multipl ied b y t heir a ve rage d urati on in sec onds, a ll multi plied by 100 .
Glossar y 101-1620 -005 GL-3 hunt gr oup A group of telephone li nes where t he incoming cal ls are d istribut ed according to a priority scheme. in-band signaling A method of connecting th e voice ser ver to t he PBX as if it were a serie s of single-li ne telephone s or a se ries of trunks in a hunt group.
Octel Unified Mess enger Con cepts & Plann ing G uide GL-4 101-1620- 005 OctelNet ga te way An OctelNet gatew ay enables Oc tel Unifi ed Messenger sub scribers to e xchange v oice messages with an y other OctelNe t-enabled v oice mail syst em, either at the same site or at remote sites .
Glossar y 101-1620 -005 GL-5 PBX integration A method tha t establishes communi cation between t he PBX and the v oice mail syste m . The PBX supplie s informatio n such as who is cal ling on inte rnal cal ls, and the e xtension that the caller is trying to reach.
Octel Unified Mess enger Con cepts & Plann ing G uide GL-6 101-1620- 005 subscrib er A Microsof t Exchange user whos e profile is enabled for voi ce messaging. A su bscriber can use both the telephone us er interfac e and the g raphical user i nterface of Oct el Unif ied Messeng er .
Glossar y 101-1620 -005 GL-7 v o i ce mail do main A group of O ctel Unif ied Messenger v oice ser vers that share a common set of properties . All subscri ber s who are pro vi ded with telep hone answering b y t hese voi ce s ervers a re sai d to “belong” to the same voice ma il d omai n.
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IN-1 101 -1620-005 Inde x A access c ontrol list, d efiniti on GL-1 accou nt sec uri t y 6-3 Accu Ca ll +, d efiniti on GL- 1 additi onal digits, Oct elNet 5-4 address ing designi ng address ing schem.
Octel Unified Mess enger Con cepts & Plann ing G uide IN-2 101-16 20-00 5 class o f service, de fi nition GL-2 client compo nents 3-5 components of Octel Unif ied Messenge r clien t administ ratio.
Index IN-3 101 -1620-005 message co nfirmati on, definit ion GL-3 messages address ing 3-4 sending 1 -1 1 messaging , voice server c omponent 3-8 Microsof t Exchange serv er 1-6 calcul ating impact on.
Octel Unified Mess enger Con cepts & Plann ing G uide IN-4 101-16 20-00 5 plannin g. See sizing please hold prompt, def inition GL-5 port gr oup, defini tion GL-5 Port Monito r 3-7 def inition GL-5 using a s low net work connec tion 2-19 ports requir ements 2-8 sizi ng 2- 4 pref ix, OctelNe t 5-4 Pri va te Branch Ex change.
Index IN-5 101 -1620-005 def inition GL-6 functi ons 1-5 secu rity 6 -4 tex t-to-speec h choosing a processor 2-10 def inition GL-6 language identif ication 1-7 voi ce serv er component 3-8 T oken Rin.
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