Instruction/ maintenance manual of the product 3600 Cisco Systems
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Configuring Voice over IP for the Cisco 3600 Series VC-13 Configur ing V oice o v er IP f or the Cisco 3600 Ser ies This chapter shows you ho w to configure V oice ov er IP (V oIP) on the Cisco 3600 series.
List of Terms VC-14 Voice, Video, and Home Applications Confi guration Guide 5 The session application then runs the H.323 sessi on protocol to establish a transmission and a reception channel for each direction over the IP network. If the call is being handled b y a PBX, the PBX forwards the call to the destination teleph one.
Prerequisite Tasks Configuring Voice over IP for the Cisco 3600 Series VC-15 PBX —Pri vate Branch Exchange. Pri vately-o wned central switching of fice. PLAR —Priv ate Line Au to Ringdown. This type of service results in a call attempt to some particular remote endpoint when the local extension is taken off-k ey .
Voice over IP Conf iguration Task Li st VC-16 Voice, Video, and Home Applications Confi guration Guide V oice over IP Configuration T ask List T o conf igure V oice over IP on the Cisco 3600 s e ries,.
Configure IP Networks fo r Real-Time Voice Traffic Configuring Voice over IP for the Cisco 3600 Series VC-17 (b) V oIP—Dial peer describing the characteristics of a packet ne twork connection; in the case of V oice over IP , th is is an IP network. V oIP peers point to specific V oIP devices.
Configure IP Networks for Real-Time Voice Traffic VC-18 Voice, Video, and Home Applications Confi guration Guide The important thing to remem ber is that QoS must be configured throughout you r network—not just on the Cisco 3600 series devices running V oIP—to improve v oice network performance.
Configure Multilink PPP with Interleaving Configuring Voice over IP for the Cisco 3600 Series VC-19 Configure Multilink PPP with Interl ea ving Multi-class Multilink PPP Interleaving allo ws la rge pa.
Configure IP Networks for Real-Time Voice Traffic VC-20 Voice, Video, and Home Applications Confi guration Guide For more information about Mu ltilink PPP , refer to the “Configuring Media-Independent PPP and Multilink PPP” ch apter in the Dial Solutions Configuration Guide .
Configure RTP Header Compression Configuring Voice over IP for the Cisco 3600 Series VC-21 Y ou should configure R TP header compression if the following conditions exist in your network: • Slow links • Need to save bandwidth Note R TP header compression should no t be used on links greater than 2 Mbps.
Configure Frame Relay for Voice over IP VC-22 Voice, Video, and Home Applications Confi guration Guide Configure Custom Queuing Some QoS features, such as IP R TP reserve and custom queuing, are based on the transport protocol and the associated port number .
Frame Relay for Voice over IP C onfiguratio n Example Configuring Voice over IP for the Cisco 3600 Series VC-23 Note Lowering the MTU size af fect s data th roughput speed. • CIR equal to line rate—Make sure that the data rate does not exceed the CIR.
Configure Number Exp ansion VC-24 Voice, Video, and Home Applications Confi guration Guide • Fair -queuing is enabled. • IP R TP header compression is enabled. The subinterface has been conf igured as follo ws: • MTU size is inherited from the main interface.
Configure Number Expa nsion Configuring Voice over IP for the Cisco 3600 Series VC-25 Figure 5 Sample V o ice over IP Netw ork T able 5 sho ws the number expansion table for this scenario. T able 5 Sample Number Ex pansion T able Note Y ou can use the period symbol (.
Configure Dial Peers VC-26 Voice, Video, and Home Applications Confi guration Guide Configure Dial P eers The key point to understanding ho w V oice ov er IP f unctions is to understand dial peers. Each dial peer def ines the characteristics as sociated with a call leg, as sh o wn in Figure 6 and Figure 7.
Inbound versus Outb ound Dial Peers Configuring Voice over IP for the Cisco 3600 Series VC-27 PO TS peers associate a telephone number with a par ticul ar voice port so that incoming calls for that telephone number can be recei ved and outgoing calls can be pl aced.
Configure Dial Peers VC-28 Voice, Video, and Home Applications Confi guration Guide Figure 9 Outgoing Calls from the P erspective of PO TS Dial P eer 2 T o complete the end-to-end call between dial peer 1 and dial peer 4 as illustrated in Fig ure 9, enter the following commands on router 10.
Configure POTS Peers Configuring Voice over IP for the Cisco 3600 Series VC-29 Configure PO TS P eers Once again, PO TS peers enable incoming calls to be recei ved b y a particular telephony de vice.
Configure Dial Peers VC-30 Voice, Video, and Home Applications Confi guration Guide Figure 10 Incoming and Outgo ing PO TS Call Legs Unless otherwise conf igured, when a call arriv es on the access server , the server presents a dial tone to the caller and collects digits until it can id entify th e destination dial peer .
Configure VoIP Peers Configuring Voice over IP for the Cisco 3600 Series VC-31 T o conf igure DID for a particular PO TS dial peer , use the following commands beginning in global configuration mode: Note Direct inward dial is conf igured for the calling POTS dial peer .
Optimize Dial Peer and Netw ork Inte rface Configura tions VC-32 Voice, Video, and Home Applications Confi guration Guide V alidation Tips Y ou can check the validity of your dial-peer configuration b.
Configure RSVP for Dial Peers Configuring Voice over IP for the Cisco 3600 Series VC-33 T o gi ve real-time v oice traff ic precedence over othe r IP network traf fic, use the following commands, begi.
Optimize Dial Peer and Netw ork Inte rface Configura tions VC-34 Voice, Video, and Home Applications Confi guration Guide T o generate an SNMP trap message if the reserv ed QoS is less than th e conf .
Configure Voice over IP using a Trunk Connection Configuring Voice over IP for the Cisco 3600 Series VC-35 Configure V AD f or a V oIP Dial P eer T o disable the transmission of si lence pack ets for .
Configure Voice over IP using a Trunk Connection VC-36 Voice, Video, and Home Applications Confi guration Guide The routers on both sides of the V o ice over IP connection must be configured for trunk connections.
Configure Voic e over IP for Microso ft NetMeeting Configuring Voice over IP for the Cisco 3600 Series VC-37 Configure a T r unk Connection T o conf igure virtual trunk connections in a V oIP network,.
Voice over IP Conf iguration Exampl es VC-38 Voice, Video, and Home Applications Confi guration Guide Configure Microsoft NetMeeting f or V oice ov er IP T o conf igure NetMeeting to w ork with V o ice over IP , complete the following steps: Step 1 From the T ools menu in the Ne tMeeting application, select Options .
FXS-to-FXS Connect ion Using RSVP Configuring Voice over IP for the Cisco 3600 Series VC-39 R12-e establish the W AN connection between the two off ices. Because one PO TS telephony de vice is connected to Router RLB-2, it has also been configured for only one PO TS peer and one V oIP peer .
Voice over IP Conf iguration Exampl es VC-40 Voice, Video, and Home Applications Confi guration Guide clockrate 64000 router igrp 888 network 10.0.0.0 network 20.
FXS-to-FXS Connect ion Using RSVP Configuring Voice over IP for the Cisco 3600 Series VC-41 Configuration f or Router RLB-w hostname rlb-w ! Configure serial interface 1/0 interface Serial1/0 ip address 10.
Voice over IP Conf iguration Exampl es VC-42 Voice, Video, and Home Applications Confi guration Guide ! Configure IGRP router igrp 888 network 10.0.0.0 network 20.
Linking PBX Users with E&M Trunk Lines Configuring Voice over IP for the Cisco 3600 Series VC-43 Linking PBX Users with E&M T r unk Lines The following e xample shows ho w to configure V oice over IP to link PBX users with E&M trunk lines.
Voice over IP Conf iguration Exampl es VC-44 Voice, Video, and Home Applications Confi guration Guide voice-port 1/0/1 signal immediate operation 4-wire type 2 !Configure the serial interface interface serial 0/0 description serial interface type dce (provides clock) clock rate 2000000 ip address 172.
PSTN Gateway Access Using FXO Connection Configuring Voice over IP for the Cisco 3600 Series VC-45 PSTN Gate wa y Access Using FXO Connection The following e xample shows ho w to configure V oice over IP to link users with the PSTN gatew ay using an FXO connecti on.
Voice over IP Conf iguration Exampl es VC-46 Voice, Video, and Home Applications Confi guration Guide Configuration f or Router SLC ! Configure pots dial peer 1 dial-peer voice 1 pots destination-pattern 9........... port 1/0/0 ! Configure voip dial peer 2 dial-peer voice 2 voip destination-pattern +14085554000 session target ipv4:172.
PSTN Gateway Access Using FXO Connection (PLAR Mode) Configuring Voice over IP for the Cisco 3600 Series VC-47 Configuration f or Router SJ ! Configure pots dial peer 1 dial-peer voice 1 pots destination-pattern +14085554000 port 1/0/0 ! Configure voip dial peer 2 dial-peer voice 2 voip destination-pattern 9.
Voice over IP Conf iguration Exampl es VC-48 Voice, Video, and Home Applications Confi guration Guide.
An important point after buying a device Cisco Systems 3600 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Cisco Systems 3600 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Cisco Systems 3600 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Cisco Systems 3600 you will learn all the available features of the product, as well as information on its operation. The information that you get Cisco Systems 3600 will certainly help you make a decision on the purchase.
If you already are a holder of Cisco Systems 3600, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Cisco Systems 3600.
However, one of the most important roles played by the user manual is to help in solving problems with Cisco Systems 3600. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Cisco Systems 3600 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
