Cisco CISCO1751 manuale d’uso

Corporate Headquarters: Copyright © 2003 Cisco Systems, Inc. All rights reserved. Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA Cisco 1751 Voice-over-IP Quick Start Guide The Cisco 1751 V oice ov er IP Quick Start Guid e explains ho w to install W AN Interface Cards and V oice Interface Cards, ho w to run conf iguration t[...]

2 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Conventions Conventions This document uses the f ollow ing con venti ons: • Commands and ke ywords are in bol dface . • Optional k eywords or arguments ar e in square brackets. • V ariables for which you supply v alues are in italic . • T itles of publications and new w ords or conce[...]

3 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Installing WAN a nd Voice Interface Card s Figure 1 V oice Interf ace Card Y ou should install and cable VICs before perfo rming the software conf iguration tasks e xplained later in this guide. War ni n g Be sure to observe all warnings and safety precautions in the in stallation guide. Caut[...]

4 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Installing WAN and Voice Interface Cards Figure 2 Inserting a WIC or VIC in the Rout er If you need m ore deta iled installa tion ins tructions, re fer to the C is c o WA N I nt e r f a c e C ard s H a rd w a re Installation Gu ide . Connecting the FXS, FXO, and E&M VICs to the Network I[...]

5 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Installing WAN a nd Voice Interface Card s Figure 3 Connecting VICs to the Networ k When you are finished, reinstall an y network interf ace cables you removed and turn on po wer to the router . Connector Pinouts for FXS, FXO, and E&M VICs Figure 4 sho ws the wiring patterns for FXS and F[...]

6 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Installing WAN and Voice Interface Cards Figure 5 sho ws the wiring pattern for an E&M connector , and Ta b l e 2 lists the E&M pinouts. Note The E&M VIC pinout depends on the PBX type and co nnection. Pins that are not used should not be connected. Figure 5 RJ-48S Wir ing f or E[...]

7 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Installing WAN a nd Voice Interface Card s The card is illustrated in Figure 6 . Figure 6 2-P ort ISDN BRI Card F ront P anel Connecting the 2-Port ISDN BRI Card Use the straight-t hrough RJ-45 cable to con nect the 2-port ISDN BRI card to the ISDN netw ork through a telephone wall outlet. Ca[...]

8 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Installing WAN and Voice Interface Cards Note When the interface is configured as NT and is connecti ng to a TE device, the cabl e must ha ve the transmit and receiv e pins swapped (crossover cable). (See Ta b l e 3 .) Step 3 Connect the other end to t he RJ-45 wall outlet. ISDN BRI Card LED[...]

9 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Cisco Router and Security Devic e Manager Figure 8 Cisco 1 751 Router Slot Number ing Figure 9 sho ws the VIC port numberin g. Figur e 9 VIC P ort Numb er ing Example If you install a VI C in both SLO T 0 and SLO T 1 of the router , the ports in each of these slots w ould be numbered as follo[...]

10 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P T o obtain the SDM release notes, and other SDM d ocumentation, go to http://www .cisco.com/go/sdm and click the T echnical Documentation link. Note If you need to configure V oice-ov er-IP , use the Configuring V oi ce-ov er-IP section of this Quick Start Guide. [...]

11 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP If the installer does not start after a few seconds, select Start>Run , and enter d:setup where d is your CD-R OM driv e. Step 5 Follo w the instructio ns on the screen to install the Cisco Conf igMaker application. T o learn about the Cisco ConfigMak er applic [...]

12 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P Information for International Users International users mu st set the v alues of certain v oice-port commands, like cptone , that are specif ic to their country . Refer to the Cisco 1751 Router Sof twar e Conf iguration Gu ide for details . Entering Configuration [...]

13 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP For complete in formation about the g lobal configurati on commands and about co nfigurin g LAN and W AN interfaces on your router , refer to the Cisc o IOS configuration gui des and command references. The rest of this guide e xplains ho w to configure yo ur router[...]

14 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P Dial Plan Use a dial plan to map the destination t elephone numbers with the v oice ports on the router . In North America, the North American Numbering Plan (NANP) is used, which consists of an area code, an off ice code, and a station code. Area codes are assign[...]

15 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP Y ou can use a period (.) as a wildca rd character representing a single digit in a t elephone number . Y ou can use the show num-exp command to verify the number expansion i nformation. East# show num-exp [dialed-number] After you ha ve conf igured dial peers and a[...]

16 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P Note Y ou can name your router by using the g lobal configuration hostname command. (For info rmation about port numbering, refer to th e section on “Determining V oice Port Numbering” earlier in this guide.) Note If your router is configur ed with three VICs,[...]

17 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP Note The telephone numbers used in this guide are only e xamples and are in valid f or public use in the United States. When you conf igure your network, be sure to substit ute your o wn telephone numbers. T o configure th e router with the dial-peer information in [...]

18 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P Figur e 13 Basic V oice Networ k (East Router) Enter the follo wing commands to configure the l ocal ports on the East Router with th e dial-peer informatio n in Ta b l e 8 : East(config)# dial-peer voice 901 pots East(config-dial-peer)# destination-pattern 191955[...]

19 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP Checking Dial Peer Configuration If you conf igured PO TS dial peers on your router b y following these e xamples, you can place calls between telephones c onnected to the same router . Y ou can also use the show dial-peer voice command to verify that the d ata you [...]

20 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P Construct a table similar to Ta b l e 1 0 for your own ro uters, assigning your o wn telephone numbers, IP addresses, and dial-peer tags. Note The IP addresses sho wn in this guide are meant only as examples. When yo u configure your network, be sure to substitute[...]

21 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP Enter the follo wing information o n the East router to create the dial-peer configuration gi ven in Ta b l e 1 1 : East(config)# num-exp 5.... 1408555.... East(config)# dial-peer voice 801 voip East(config-dial-peer)# destination-pattern 1408555.... East(config-dia[...]

22 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P Figure 18 FX O Gatew ay t o PSTN T o create a PO TS dial peer for an FXS interface as explained earlier , you enter the complete telephone number of the attached telephone as the desti nation pattern for incoming calls. Ho wev er , to create a PO TS dial peer for [...]

23 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP Checking FXO Configuration If you conf igured your FXO interf ace according to this example, y ou can place outgoing calls over the PSTN. If you ha ve troub le placing calls, use the sh ow voi ce port command to make sure that the VIC is installed co rr ectly . Use [...]

24 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P Both PBXs in this e xample use E&M interface T ype 2, with four -wire operation and immed iate-start signaling. The v alues for your conf iguration depend on your PBX and are av ailable from your telecommunications d epartment or the PBX manufacturer . For mor[...]

25 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP Note For these commands to take ef fect, you hav e to cycle the port b y using the shutdown and no shutdo wn commands. Note Configure th e PBX to pass all dual-tone multifrequenc y (DTMF) signals to the router . Config ure the East router similar to the We s t route[...]

26 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P • Multilink Point-to Point Protocol (PPP) interleaving • Real-T ime T ransport Protocol (R TP) header compression Cisco IOS software provides many other tools fo r ensuring QoS, such as custom queu ing, priority queuing, and w eighted fair queuin g. For furthe[...]

27 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP RSVP Resource Reserv ation Protocol (RSVP) enables routers to reserve enough bandwidth on an interface for reliable and quality perfo rmance. RSVP works well on PPP , HDLC, and similar serial line interfaces. It does not work well on multi-access LANs. Y ou should c[...]

28 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Configuring Voice-over-I P Configuring Multilink PPP Interleaving T o conf igure multilink PPP and interlea ving on a dial er, ISDN PRI or I SDN BRI interface, or a virtual template, you must fir st configure mu ltilink PPP and interl eaving on the in terf ace or template by entering the fo[...]

29 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Configuring Voice-over-IP Configuring Frame Relay for VoIP Config uring V oIP on a Frame Relay li nk in volv es ce rtain special considerati ons to ensure acceptable voi ce quality . For Frame Relay links with slo w output rates (64 kbps or l ess) and with data and voice being transmitted o [...]

30 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 List of Terms List of Terms This section def ines some of the V oIP terms and co ncepts used in this guide. BRI —Basic Rate Interface, an ISDN interf ace. CIR —Committed information rate. The a verage rate of in formation tran sfer a subscriber (for example, the network administ rator) [...]

31 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Obtaining Documentation RT P —Real-Time T ransport Proto col, a network protocol used to carry audio and video packet traf f ic ov er an IP network. session target —A remote IP or DNS address specif ied for a dial peer . tag —A positiv e integ er in the range 1 to 2 31 -1 (21474836 47)[...]

32 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Documentation Fe edback Documentation Feedback Y ou can send comments about technical documentation to bug-doc@cisco.com. Y ou can submit comments by using the resp onse card (if present) behind the front co ver of your document or by writ ing to the follo wing address: Cisco Systems Attn: [...]

33 Cisco 1751 Voice-over-IP Quick Start Guide 78-11259-05 Obtaining Additional Publ ications and Information T o open a service req uest by telephone, use one of the fo llowi ng numbers: Asia-Pacif ic: +61 2 8446 741 1 (Australia: 1 800 805 227) EMEA: +32 2 704 55 55 USA: 1 800 553 24 47 For a complete list of Cisco T AC contact s, go to this URL: [...]

34 Cisco 1751 Voice-over-I P Quick Start Guide 78-11259-05 Obtaining Additional Pub lications and Information • iQ Magazine is the quarterly pub lication from Cisco Syst ems designed to help gro wing compan ies learn ho w they can use technology to in crease rev enue, streamline their b usiness, and expand services. The publication iden tifie s t[...]