ccnp-iv-ont mod 1 lesson 1

8/10/2019 Ccnp-IV-Ont Mod 1 Lesson 1

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2006 Cisco Systems, Inc. All rights reserved.

Optimizing ConvergedCisco Networ s !ON"#

Lesson 1.1: The Evolution of Telephony in the Enterprise


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Objectives

$escri%e the history o& the telephone services ind'stry(nd its (&&ect on modern %'siness pr(ctices.

Identi&y the components o& the tr(dition(l telephonesystem.

$escri%e tr(dition(l )O"S service.

$escri%e IS$N * "+ services.

-pl(in the drivers o& converged networ s.


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Basic Telephone System

A telephone system h(s &o'r elements A telephone set to convert so'nd to electric(l sign(ls (nd %(c to so'ndOne or more centr(l switching &(cilitiesConnections to the centr(l switching &(cilitiesConnections (mong m'ltiple switching centers (cross telephonenetwor s

S'%scri%ers connect to the telephone networ 'sing$edic(ted wire connections in overhe(d or 'ndergro'nd c(%les/(dio w(ves !cell'l(r, s(tellite, or r(diotelephone#oI)


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Basic Components of a Mo ern TelephoneSystem

!iber

"#

#OTS an$%SL

Central Office&ith S&itches

'ome Office &ithCorporate (#)inclu in* (o"#

Cellular #honeSystem

Lon* %istance an"nternational Connections

LocalLoop


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Tra itional #OTS Services

)S"N or )"" !)O"S# h(s rem(ined pr(ctic(lly'nch(nged &or over +00 ye(rs o&&ering

1i direction(l, or &'ll d'ple-, voice p(th to c(rry so'nd %oth

w(ys (t once$i(l tone (nd ringing sign(ls

S'%scri%er di(ling

Oper(tor services, s'ch (s directory (ssist(nce, long dist(nce,(nd con&erence c(lling (ssist(nce

)ower


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IS$N A set o& st(nd(rds th(t (llow d(t( (nd voice to %ec(rried on copper wire &rom the telephone e-ch(nge toc'stomer premises

1/I 2 1 ch(nnels (nd + $ ch(nnel &or control)/I 23 1 ch(nnels !30 in 'rope# (nd + $ ch(nnel &or control

"+ C(rrier System Speci&ic(tion &or digit(l tr(nsmission%etween telephone e-ch(nges (nd sometimes directly

to c'stomer premises. "+ 'ses copper wire or &i%er.

"S%) an T1 Services


7/17 2006 Cisco Systems, Inc. All rights reserved.

$igit(l "elephone Services incl'deoice m(il

C(ller I$

C(ll w(iting/eminder c(lls

!"hree w(y# con&erence c(lling

nh(nced 4++ !in North Americ(#

Centre- A n'm%er o& other simil(r services

%i*ital Telephone Services



Centre- !( virt'(l )15#C(ll "r(ns&erC(ll $ivert on no reply (nd on %'sy c(llsC(ll 7(iting"hree )(rty Con&erenceC(ll )ic 8p !9ro'p#/ing 1(c/eminder or Al(rm C(ll

:(st N'm%er /edi(lCentre- ;otline !non di(led connection#Centre- 7(rm :ine !del(yed ;otline#Centre- ;'nt 9ro'ps, with option(l %yp(ss n'm%ers

Typical Centre+ telephone. )ote the,ecall button an the Messa*e

-aitin* lamp.

#B an Centre+
http://en.wikipedia.org/wiki/Image:ATTtelephone-large.jpg



#B

May " have a lineto Chica*o/

#ST)

"s this abusiness call/

Than0 you. Onesecon please.

Chica*o Office

es it is.

Lon*2%istance Callin* Challen*es



:ong dist(nce tr'n lines connect telephonee-ch(nges.

:ong dist(nce services incl'deO8" 7A"S



S(n >oseO&&ice

"o yoO&&ice

:ondonO&&ice

#B

#B#B

Separate (oice3 (i eo3 an %ata )et&or0s



"# -$)

#ST)

Conver*e (oice3 (i eo3 an %ata )et&or0



Self Chec0

+. 7h(t (re the 2 levels o& IS$N service?

2. 7h(t is ( Centre-?

3. 7h(t is ( 7A"S type pl(n?@. 7h(t options (re (v(il(%le in 7A"S pl(ns?



Summary

Comp(nies h(ve 'sed telephone services &or over +00ye(rs (s ( p(rt o& their %'siness pr(ctices.

Ch(nging technology (nd ch(nging enterprise needsh(ve in&l'enced ch(nges in telephony services.

"he incre(sing 'se o& I) tr(nsport &or d(t(, voice (ndvideo h(s le(d to the need &or converged networ s.



4 an $



,esources

7i ipedi( "elephone -ch(nge (rticlehttp en.wi ipedi(.org wi i "elephoneBe-ch(nge

Cisco I) "elephones on Converged Networ n(%le/(pid mergency /esponse

http newsroom.cisco.com dlls p(rtners s'ccessBstories 200+pssB+0 +0.html

( ing the 1'siness C(se &or 8ni&ied Comm'nic(tionshttp www.cisco.com en 8S netsol ns3@0 ns34@ ns+6D networingBsol'tionsB('dienceB%'sinessB%ene&it0400(ecd=0@E2e&%.html


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ccnp-iv-ont mod 1 lesson 1

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