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T1/E1 Digital Voice Port Adapter Installation and Configuration

OL-3592-02

Chapter 2 Preparing for Installation

FCC Class A Compliance

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Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is,
make certain the equipment and the television or radio are on circuits controlled by different circuit
breakers or fuses.)

Note

The PA-VXA, PA-VXB, and PA-VXC port adapters have been designed to meet these requirements.
Modifications to this product that are not authorized by Cisco Systems, Inc., could void the various
approvals and negate your authority to operate the product.

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Summary of Contents for PA-VXA Series

Page 1: ...TS 6387 Fax 408 526 4100 T1 E1 Digital Voice Port Adapter Installation and Configuration Product Numbers PA VXA 1TE1 24 PA VXA 1TE1 30 PA VXB 2TE1 PA VXB 2TE1 PA VXC 2TE1 PA VXC 2TE1 Platforms Supported Cisco 7200 Series Cisco 7200 VXR Cisco 7301 Routers Cisco 7401ASR Routers and VIP in the Cisco 7500 Series Text Part Number OL 3592 02 ...

Page 2: ... antenna until the interference stops Move the equipment to one side or the other of the television or radio Move the equipment farther away from the television or radio Plug the equipment into an outlet that is on a different circuit from the television or radio That is make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses Modific...

Page 3: ...btaining Additional Publications and Information xii C H A P T E R 1 Overview 1 1 Port Adapter Overview 1 1 Features 1 3 LEDs 1 5 Cables Connectors and Pinouts 1 5 Port Adapter Slot Locations on the Supported Platforms 1 6 Cisco 7200 Series and Cisco 7200 VXR Routers Slot Numbering 1 7 Cisco 7301 Router Slot Numbering 1 7 Cisco 7401ASR Router Slot Numbering 1 8 VIP Slot Numbering 1 8 Identifying I...

Page 4: ...ning Activity Warning 3 5 Service Personnel Warning 3 6 No 26 AWG Warning 3 7 Customer Equipment Warning 3 8 Port Adapter Removal and Installation 3 9 Cisco 7200 Series Removing and Installing a Port Adapter 3 10 Cisco 7301 Router Removing and Installing a Port Adapter 3 11 Cisco 7401ASR Router Removing and Installing a Port Adapter 3 12 Cisco 7500 Series Removing and Installing an Interface Proce...

Page 5: ... Configuration 4 22 Troubleshooting Tips 4 22 Configure Voice Ports 4 22 Configure FXO or FXS Voice Ports 4 23 Validation Tips 4 24 Troubleshooting Tips 4 24 Fine Tune FXO and FXS Voice Ports 4 24 Configure E M Voice Ports 4 26 Validation Tips 4 27 Troubleshooting Tips 4 27 Fine Tune E M Voice Ports 4 27 Optimize Dial Peer and Network Interface Configurations 4 29 Configure IP Precedence for Dial ...

Page 6: ...Contents vi T1 E1 Digital Voice Port Adapter Installation and Configuration OL 3592 02 T1 Loopback Examples 4 42 E1 Loopback Examples 4 44 ...

Page 7: ...ty Digital Voice port adapter PA VXC 2TE1 the PA VXB 2TE1 Enhanced Moderate Capacity Digital Voice port adapter PA VXB 2TE1 and the PA VXC 2TE1 Enhanced High Capacity Digital Voice port adapter PA VXC 2TE1 hereafter referred to as the PA VXA PA VXB and PA VXC These port adapters are used in the following platforms Cisco 7200 series routers consisting of the two slot Cisco 7202 the four slot Cisco ...

Page 8: ...apter Hardware Configuration Guidelines For hardware installation and maintenance information refer to the installation and configuration guide that shipped with your Cisco 7200 series router For information on network processing engines or network services engines refer to the Network Processing Engine and Network Services Engine Installation and Configuration publication Cisco 7200 VXR routers F...

Page 9: ...tory Compliance and Safety Information for the Cisco 7200 Series Routers Cisco 7300 Series Internet Routers Regulatory Compliance and Safety Information Cisco 7401ASR Regulatory Compliance and Safety Information Regulatory Compliance and Safety Information for the Cisco 7500 Series Routers To view Cisco documentation or obtain general information about the documentation refer to the following sour...

Page 10: ...users Cisco direct customers can order Cisco product documentation from the Networking Products MarketPlace http www cisco com en US partner ordering index shtml Registered Cisco com users can order the Documentation CD ROM Customer Order Number DOC CONDOCCD through the online Subscription Store http www cisco com go subscription Nonregistered Cisco com users can order documentation through a loca...

Page 11: ...register on Cisco com at this URL http www cisco com Technical Assistance Center The Cisco TAC is available to all customers who need technical assistance with a Cisco product technology or solution Two levels of support are available the Cisco TAC website and the Cisco TAC Escalation Center The avenue of support that you choose depends on the priority of the problem and the conditions stated in s...

Page 12: ...ur network operations center to determine the level of Cisco support services to which your company is entitled for example SMARTnet SMARTnet Onsite or Network Supported Accounts NSA When you call the center please have available your service agreement number and your product serial number Obtaining Additional Publications and Information Information about Cisco products technologies and network s...

Page 13: ...g le31 learning_recommended_training_list html The Cisco TAC Escalation Center addresses priority level 1 or priority level 2 issues These classifications are assigned when severe network degradation significantly impacts business operations When you contact the TAC Escalation Center with a P1 or P2 problem a Cisco TAC engineer automatically opens a case To obtain a directory of toll free Cisco TA...

Page 14: ...xiv T1 E1 Digital Voice Port Adapter Installation and Configuration OL 3592 02 Preface Obtaining Additional Publications and Information ...

Page 15: ... Pinouts page 1 5 Port Adapter Slot Locations on the Supported Platforms page 1 6 Identifying Interface Addresses page 1 9 Port Adapter Overview The PA VXA 1TE1 24 see Figure 1 1 is a single port T1 E1 voice port adapter with seven active digital signal processors DSPs This PA VXA can support up to 28 simultaneous medium complexity codec G 729a G 726 or G 711 voice channels enough channels to supp...

Page 16: ...ters Cisco 7401ASR routers and Cisco 7500 series routers to become dedicated packet voice hubs or packet voice gateways that connect to both private branch exchanges PBXs and the Public Switched Telephone Network PSTN With this technology packet voice and packet fax calls can be placed over the wide area network WAN and sent through the gateway into the traditional circuit switched voice infrastru...

Page 17: ...rop and insert Flexible TDM cross connect capability between ports and the MIX bus is available VoIP and VoFR termination Full VoIP and Voice over Frame Relay VoFR gateway functionality for mixed environments is available Full featured DSP firmware Support exists for eight standard compression algorithms plus echo cancellation full dual tone multifrequency DTMF MF tone detection and generation and...

Page 18: ... Full support for DSX 1 Management Information Base MIB RFC 1406 including alarm detection and reporting DSX 1 MIB remote access supported Port configured as E1 features E1 120 ohm G 703 with RJ 48C connectors Software configurable E1 national bits Binary 3 zero substitution B3ZS encoding Full support for E1 MIB RFC 1406 including alarm detection and reporting Full bit error rate testing capabilit...

Page 19: ...d ACCUNET TR62411 standards The RJ 45 connection does not require an external transceiver The DS1 ports are T1 interfaces that use foil twisted pair cables Shielded cables foil twisted pair FTP with 120 ohm impedance are required to comply with CE marking requirements Figure 1 5 shows the PA VXA PA VXB and PA VXC port adapter interface cable connector See the Connecting Interface Cables section on...

Page 20: ...orted Platforms This section discusses port adapter slot locations on the supported platforms The illustrations that follow summarize slot location conventions on each platform Cisco 7200 Series and Cisco 7200 VXR Routers Slot Numbering page 1 7 Cisco 7301 Router Slot Numbering page 1 7 Cisco 7401ASR Router Slot Numbering page 1 8 VIP Slot Numbering page 1 8 H2936 87654321 RJ 45 connector Table 1 ...

Page 21: ...r Slot on the Cisco 7301 Router Note The Cisco 7301 router is currently supported by the PA VXB 2TE1 and the PA VXC 2TE1 port adapters only 28329 2 ETHERNET 10BFL E N R X 0 1 2 3 4 T X R X T X R X T X R X T X R X T X 0 4 1 3 5 6 TOKEN RING 0 1 2 3 Cisco 7200 Series FAST ETHERNET INPUT OUTPUT CONTROLLER E N A B L E D P C M C IA E J E C T S L O T 0 S L O T 1 F E M II E N 0 7 1 2 3 4 5 6 SERIAL V 35 ...

Page 22: ...IP Slot Numbering Figure 1 9 shows a partial view of a VIP motherboard with installed port adapters that would be used with a Cisco 7500 series router With the motherboard oriented as shown in Figure 1 9 the left port adapter is in port adapter slot 0 and the right port adapter is in port adapter slot 1 The slots are always numbered 0 and 1 Figure 1 9 VIP Motherboard with Two Port Adapters Install...

Page 23: ...However when you move a port adapter to a different slot the first number in the interface address changes to reflect the new port adapter slot number Note Interface ports are numbered from left to right starting with 0 Table 1 3 explains how to identify interface addresses 29619 Slot 0 Slot 1 Slot 2 Slot 3 Interface processor slots E J E C T S L O T 0 S L O T 1 N O R M A L C P U H A L T R E S E T...

Page 24: ...he PA VXB 2TE1 or the PA VXC 2TE1 in a Cisco 7301 router In the Cisco 7301 router slot 1 is the port adapter slot you use for any of these two port adapters See Figure 1 7 The interface address is composed of a two part number in the format port adapter slot number interface port number See Table 1 3 for the interface address format Note The Cisco 7301 router is currently supported by the PA VXB 2...

Page 25: ...ess format Note The Cisco 7401ASR router is currently supported by the PA VXB 2TE1 and the PA VXC 2TE1 port adapters only Cisco 7500 Series Routers Interface Addresses This section describes how to identify the interface addresses used for the PA VXA PA VXB and PA VXC on a VIP in Cisco 7500 series routers Note Although the processor slots in the seven slot Cisco 7507 and the thirteen slot Cisco 75...

Page 26: ...1 12 T1 E1 Digital Voice Port Adapter Installation and Configruation OL 3592 02 Chapter 1 Overview Identifying Interface Addresses ...

Page 27: ...and Equipment You need the following tools and parts to install a port adapter If you need additional equipment contact a service representative for ordering information PA VXA 1TE1 24 PA VXA 1TE1 30 PA VXB 2TE1 PA VXB 2TE1 PA VXC 2TE1 or PA VXC 2TE1 port adapter Shielded cables foil twisted pair FTP with 120 ohm impedance for E1 connections only Note To comply with Conducted Susceptibility of the...

Page 28: ...1 3 T or a later release of Cisco IOS Release 12 1 T Cisco IOS Release 12 2 1 or a later release of Cisco IOS Release 12 2 Cisco IOS Release 12 2 1 T or a later release of Cisco IOS Release 12 2 T Cisco IOS Release 12 2 4 B or a later release of Cisco IOS Release 12 2 B Cisco 7301 routers Cisco IOS Release 12 2 11 YZ or a later release of Cisco IOS Release 12 2 YZ Cisco 7401ASR routers Cisco IOS R...

Page 29: ... Software Advisor You can also access the tool by pointing your browser directly to http www cisco com cgi bin support CompNav Index pl Choose a product family or enter a specific product number to search for the minimum supported software release needed for your hardware Safety Guidelines This section provides safety guidelines that you should follow when working with any equipment that connects ...

Page 30: ...conscient des dangers posés par les circuits électriques et familiarisez vous avec les procédures couramment utilisées pour éviter les accidents Pour prendre connaissance des traductions d avertissements figurant dans cette publication consultez le document Regulatory Compliance and Safety Information Conformité aux règlements et consignes de sécurité qui accompagne cet appareil Warnung Dieses War...

Page 31: ...ne lines Aviso Este símbolo de aviso indica perigo Encontra se numa situação que lhe poderá causar danos físicos Antes de começar a trabalhar com qualquer equipamento familiarize se com os perigos relacionados com circuitos eléctricos e com quaisquer práticas comuns que possam prevenir possíveis acidentes Para ver as traduções dos avisos que constam desta publicação consulte o documento Regulatory...

Page 32: ... If you plan to return the component to the factory immediately place it in a static shielding container Avoid contact between the printed circuit boards and clothing The wrist strap only protects components from ESD voltages on the body ESD voltages on clothing can still cause damage Never attempt to remove the printed circuit board from the metal carrier Caution For safety periodically check the...

Page 33: ...rom the television or radio That is make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses Note The PA VXA PA VXB and PA VXC port adapters have been designed to meet these requirements Modifications to this product that are not authorized by Cisco Systems Inc could void the various approvals and negate your authority to operate the ...

Page 34: ...2 8 T1 E1 Digital Voice Port Adapter Installation and Configuration OL 3592 02 Chapter 2 Preparing for Installation FCC Class A Compliance ...

Page 35: ... port adapter circuit board is mounted to a metal carrier and is sensitive to electrostatic discharge ESD damage Note When a port adapter slot is not in use a blank port adapter must fill the empty slot to allow the router or switch to conform to electromagnetic interference EMI emissions requirements and to allow proper airflow across the port adapters If you plan to install a new port adapter in...

Page 36: ...pters Handling Port Adapters Figure 3 1 Handling a Port Adapter Caution Always handle the VIP by the carrier edges and handle never touch the VIP components or connector pins See Figure 3 2 Figure 3 2 Handling the VIP Horizontal Orientation Shown H6420 Metal carrier Printed circuit board H4714 Captive installation screws ...

Page 37: ... is flowing through the ports can cause system disruption Once the module is inserted the ports can be brought back up Note As you disengage the module from the router or switch online insertion and removal OIR administratively shuts down all active interfaces in the module OIR allows you to install and replace modules while the router is operating you do not need to notify the software or shut do...

Page 38: ...rted into a slot its ports are configured and brought online up to the port count of the originally installed module of that type Note Before you begin installation read Chapter 2 Preparing for Installation for a list of parts and tools required for installation Warnings and Cautions Observe the following warnings and cautions when installing or removing port adapters Caution Do not slide a port a...

Page 39: ...dung um Kontakt mit Telefonnetzspannungen zu vermeiden Avvertenza Prima di aprire il telaio scollegare i cavi della rete telefonica per evitare di entrare in contatto con la tensione di rete Advarsel Før kabinettet åpnes skal kablene for telenettet kobles fra for å unngå å komme i kontakt med spenningen i telenettet Aviso Antes de abrir o chassis desligue os cabos da rede telefónica para evitar co...

Page 40: ...geïnstalleerd en onderhouden worden door servicepersoneel conform de definitie van AS NZS 3260 Clausule 1 2 14 3 Service Personnel Varoitus Tämän laitteen saa asentaa tai huoltaa ainoastaan Australiassa ja Uudessa Seelannissa sovellettavan AS NZS 3260 standardin kohdan 1 2 14 3 Service Personnel määrittelemä huoltohenkilöstö Attention Cet équipement ne doit être installé et entretenu que par du pe...

Page 41: ...an vähentämiseksi käytä ainoastaan nro 26 AWG tai paksumpaa tietoliikennejohdinta Attention Pour réduire le risque d incendie n utiliser que des cordons de lignes de télécommunications de type AWG nº 26 ou plus larges Warnung Zur Reduzierung der Feuergefahr eine Fernmeldeleitungsschnur der Größe 26 AWG oder größer verwenden Avvertenza Per ridurre il rischio di incendio usare solo un cavo per linea...

Page 42: ...un équipement de l utilisateur autorisé par ACA ou dans un DTE Data Terminal Equipment pour lequel l autorisation de ACA n est pas exigée L équipement de l utilisateur ne doit être placé que dans une enceinte munie de couvercles à vis qui empêchent l utilisateur d accéder aux surtensions présentes L équipement de l utilisateur est muni de circuits qui peuvent avoir des tensions de réseau de téléco...

Page 43: ...g and Installing a Port Adapter page 3 12 Cisco 7500 Series Removing and Installing an Interface Processor page 3 13 VIP Removing and Installing a Port Adapter page 3 14 Aviso O cartão de ligação E1 apenas poderá ser instalado em equipamento dos clientes que possuam autorização da ACA Australian Communications Authority ou num DTE Data Terminal Equipment que esteja isento dos requisitos de autoriz...

Page 44: ... See B Step 6 With the port adapter halfway into the slot connect all required cables to the port adapter After connecting all required cables carefully slide the port adapter all the way into the slot until the port adapter is seated in the router midplane Step 7 After the port adapter is properly seated lock the port adapter lever See A 27996 2 0 4 1 3 5 6 FAST SERIAL EN TD TC RD RC LB CD TD TC ...

Page 45: ...about halfway out of its slot See B If you are removing a blank port adapter pull the blank port adapter completely out of the chassis slot Step 4 With the port adapter halfway out of the slot diconnect all cables from the port adapter After disconnecting the cables pull the port adapter from its chassis slot Caution The port adapter must slide into the slot guides close to the chassis lid See C D...

Page 46: ...adapter locate the port adapter slot guides inside the Cisco 7401ASR router They are near the top and are recessed about 1 2 inch See B Caution The port adapter must slide into the slot guides under the chassis lid Do not allow the port adapter components to come in contact with the system board or the port adapter could be damaged Step 5 Insert the port adapter in the slot guides halfway and then...

Page 47: ...odule as you pull it out of the slot Avoid touching the card 4 Place the removed module on an antistatic mat or antistatic foam or immediately install it in another slot 5 Install a new module or a filler MAS7K BLANK to keep dust out of the chassis and to maintain proper airflow through the chassis Install a module as follows 1 Choose a slot for the new module and ensure that there is enough clear...

Page 48: ...er between the upper and the lower edges of the port adapter slot See B Step 4 Carefully slide the new port adapter into the port adapter slot until the connector on the port adapter is completely seated in the connector at the rear of the port adapter slot See B Step 5 Install the screw in the rear of the port adapter slot on the VIP Do not overtighten the screw See A Step 6 Carefully slide the V...

Page 49: ...from outside commercial cable vendors To connect shielded twisted pair cables with RJ 45 connectors to the PA VXA PA VXB or PA VXC port adapters proceed as follows Step 1 Attach the cable directly to one of the RJ 45 ports on the PA VXA PA VXB or PA VXC port adapter Step 2 Attach the network end of the cable to your external equipment Step 3 Repeat Step 1 and Step 2 for the other PA VXB or PA VXC ...

Page 50: ...3 16 T1 E1 Digital Voice Port Adapter Installation and Configuration OL 3592 02 Chapter 3 Removing and Installing Port Adapters Connecting Interface Cables ...

Page 51: ...er called the EXEC also called enable mode You must enter the privileged level of the EXEC command interpreter with the enable command before you can use the configure command to configure a new interface or change the existing configuration of an interface The system prompts you for a password if one has been set The system prompt for the privileged level ends with a pound sign instead of an angl...

Page 52: ...y to obtain password access See the Using the EXEC Command Interpreter section on page 4 1 for an explanation of the privileged level of the EXEC This section contains the following subsections Shutting Down a Controller page 4 2 Performing a Basic Configuration page 4 4 Shutting Down a Controller Before you remove a PA VXA PA VXB or PA VXC that you will not replace or replace a PA VXA PA VXB or P...

Page 53: ...sted in the Related Documentation section on page viii Table 4 1 Syntax of the shutdown Command Platform Command Example Cisco 7200 series and Cisco 7200 VXR routers controller followed by the type t1 or e1 and slot port port adapter slot number interface port number The example is for the T1 controller in port adapter slot 1 Router config controller t1 1 0 Router config shutdown Ctrl Z Router Cis...

Page 54: ...f one has been set Use the following procedure to configure the PA VXA PA VXB or PA VXC port adapters Press the Return key after each configuration step unless otherwise noted Step 1 Confirm that the system recognizes the PA VXA PA VXB or PA VXC port adapter by entering the show running config command Router show running config Step 2 Use the configure terminal command to enter configuration mode ...

Page 55: ...line code as shown in the example below Router config controller linecode hbd3 Step 7 Use the clock source command to select between internal or line clocking Router config controller clock source line Note Line clocking is normally selected because of the highly accurate clock source supplied by the network Step 8 When installed in a Cisco 7200 VXR router use the frame clock select priority carri...

Page 56: ...orking IP network For more information about configuring IP refer to the IP Overview and IP Addressing and Services chapters in the Cisco IOS Release 12 0 Network Protocols Configuration Guide Part 1 Install the PA VXA PA VXB or PA VXC port adapter in your router Complete your company s dial plan Establish a working telephony network based on your company s dial plan Integrate your dial plan and t...

Page 57: ...stination telephone If Resource Reservation Protocol RSVP has been configured the RSVP reservations are put into effect to achieve the desired quality of service over the IP network 6 The codecs are enabled for both ends of the connection and the conversation proceeds using Realtime Transport Protocol User Datagram Protocol Internet Protocol RTP UDP IP as the protocol stack 7 Any call progress ind...

Page 58: ...ng two characteristics associated telephone number and logical interface Use the destination pattern command to associate a telephone number with a POTS peer Use the port command to associate a specific logical interface with a POTS peer In addition you can specify direct inward dialing for a POTS peer by using the direct inward dial command VoIP Dial peer describing the characteristics of a packe...

Page 59: ... then select the appropriate QoS tool or tools The important thing to remember is that QoS must be configured throughout your network not just on the Cisco 7200 series routers Cisco 7200 VXR routers Cisco 7401ASR routers or Cisco 7500 series routers running VoIP to improve voice network performance Not all QoS techniques are appropriate for all network routers Edge routers and backbone routers in ...

Page 60: ...d so that it is backward compatible with systems that do not implement RSVP To enable RSVP on an interface use the following command in interface configuration mode ip rsvp bandwidth interface kbps single flow kbps This command starts RSVP and sets the bandwidth and single flow limits The default maximum bandwidth is up to 75 percent of the bandwidth available on the interface By default the amoun...

Page 61: ...delay sensitive voice packets on a slow link that is used for other best effort traffic Note Interleaving applies only to interfaces that can configure a multilink bundle interface These include virtual templates dialer interfaces and Integrated Services Digital Network ISDN Basic Rate Interface BRI or Primary Rate Interface PRI In general Multilink PPP with interleaving is used in conjunction wit...

Page 62: ...n Real Time Transport Protocol RTP is used for carrying packetized audio traffic over an IP network RTP header compression compresses the IP UDP RTP header in an RTP data packet from 40 bytes to approximately 2 to 4 bytes most of the time as shown in Figure 4 1 This compression feature is beneficial if you are running VoIP over slow links Enabling compression on both ends of a low bandwidth serial...

Page 63: ...age 4 13 Change the Number of Header Compression Connections page 4 14 Enable RTP Header Compression on a Serial Interface To use RTP header compression you need to enable compression on both ends of a serial connection To enable RTP header compression use the following command in interface configuration mode ip rtp header compression passive If you include the passive keyword the software compres...

Page 64: ...and other methods for identifying high priority streams should be configured for these port ranges Configure Weighted Fair Queuing Weighted fair queuing ensures that queues do not starve for bandwidth and that traffic gets predictable service Low volume traffic streams receive preferential service high volume traffic streams share the remaining capacity obtaining equal or proportional bandwidth In...

Page 65: ...x Figure 4 2 Sample VoIP Network Table 4 2 shows the number expansion table for this scenario Note You can use the period symbol to represent variables such as extension numbers in a telephone number The information included in this example needs to be configured on both Router A and Router B 408 555 2001 408 555 1001 408 555 3001 729 411 5001 729 411 5004 729 411 5002 729 411 5003 Router A WAN WA...

Page 66: ... is a discrete segment of a call connection that lies between two points in the connection All of the call legs for a particular connection have the same connection ID There are two different kinds of dial peers POTS Dial peer describing the characteristics of a traditional telephony network connection POTS peers point to a particular voice port on a voice network device VoIP Dial peer describing ...

Page 67: ...t telephone number can be received and outgoing calls can be placed VoIP peers point to specific devices by associating destination telephone numbers with a specific IP address so that incoming calls can be received and outgoing calls can be placed Both POTS and VoIP peers are needed to establish VoIP connections Establishing communication using VoIP is similar to configuring an IP static route yo...

Page 68: ...4 Figure 4 6 Outgoing Calls from the Perspective of POTS Dial Peer 2 To complete the end to end call between dial peer 1 and dial peer 4 as illustrated in Figure 4 6 enter the following commands on router 10 1 1 2 dial peer voice 4 pots destination pattern 1310555 port 1 0 0 dial peer voice 3 voip destination pattern 1408555 session target ipv4 10 1 2 2 Create a Peer Configuration Table There is s...

Page 69: ...as the destination pattern for the POTS peer The router then strips out the left justified numbers corresponding to the destination pattern matching the called number If you have configured a prefix the prefix will be put in front of the remaining numbers creating a dial string which the router will then dial If all numbers in the destination pattern are stripped out the user receives depending on...

Page 70: ...nd call With DID the router does not present a dial tone to the caller and does not collect digits it forwards the call directly to the configured destination To use DID and an incoming called number a dial peer must be associated with the incoming call leg It is helpful to understand the logic behind the algorithm used to associate the incoming call leg with the dial peer The algorithm used to as...

Page 71: ...to be made from a particular telephony device To configure a VoIP peer you need to uniquely identify the peer by assigning it a unique tag number and define its destination telephone number and destination IP address As with POTS peers under most circumstances the default values for the remaining dial peer configuration commands are adequate to establish connections To enter the dial peer configur...

Page 72: ...onnection have incompatible codec values Make sure that both VoIP peers have been configured with the same codec value Use the debug vpm spi command to verify the output string that the router dials is correct Use the debug cch323 rtp command to check RTP packet transport Use the debug cch323 h225 command to check the call setup Configure Voice Ports Voice ports on Cisco 7200 series routers Cisco ...

Page 73: ...onnection plar command Music threshold using the music threshold command Description using the description command Comfort noise if VAD is activated vad is a dial peer command using the comfort noise command To configure FXO and FXS voice ports use the following commands beginning in privileged EXEC mode Command Purpose Step 1 configure terminal Enter the global configuration mode Step 2 voice por...

Page 74: ...odule has been correctly installed For more information refer to the installation document Voice Network Module and Voice Interface Card Configuration Note that came with your voice network module Fine Tune FXO and FXS Voice Ports Depending on the specifics of your particular network you might need to adjust voice parameters involving timing input gain and output attenuation for FXO or FXS voice p...

Page 75: ...etected Nonlinear processing is used with echo cancellation Step 6 timeouts initial seconds Specify the number of seconds the system waits for the caller to input the first digit of the dialed digits Valid entries for this command are from 0 to 120 Step 7 timeouts interdigit seconds Specify the number of seconds the system waits after the caller has input the initial digit for the caller to input ...

Page 76: ...pe using the dial type command Signal type using the signal command Call progress tone using the cptone command Operation using the operation command Type using the type command Impedance using the impedance command Step 3 Select one or more of the following optional parameters by using the indicated commands PLAR connection mode using the connection plar command Music threshold using the music th...

Page 77: ...e port is offline use the no shutdown command If you have configured E M interfaces make sure that the values pertaining to your specific PBX setup such as timing or type are correct Check to see if the voice network module has been correctly installed For more information refer to the installation document that came with your voice network module Fine Tune E M Voice Ports Depending on the specifi...

Page 78: ...ming delay start timing dial pulse min delay timing digit timing inter digit timing pulse timing pulse inter digit timing wink duration and timing wink wait commands To fine tune E M voice ports use the following commands beginning in privileged EXEC mode Command Purpose Step 1 configure terminal Enter the global configuration mode Step 2 voice port slot number subunit number port Identify the voi...

Page 79: ...fy the number of seconds the system waits after the caller has input the initial digit for the caller to input a subsequent digit Valid entries for this command are from 0 to 120 Step 8 timing clear wait milliseconds timing delay duration milliseconds timing delay start milliseconds timing dial pulse min delay milliseconds timing digit milliseconds timing inter digit milliseconds timing pulse puls...

Page 80: ... for a selected VoIP peer use the following commands beginning in global configuration mode Note We suggest that you select controlled load for the requested quality of service For example to specify guaranteed delay QoS for VoIP dial peer 108 enter the following dial peer voice 108 voip destination pattern 1408528 req qos controlled load session target ipv4 10 0 0 8 In this example every time a c...

Page 81: ...est importance you should configure the codec command for g711alaw or g711ulaw Using these values results in better voice quality but it also requires higher bandwidth requirements for voice For example to specify a codec rate of G 711a law for VoIP dial peer 108 enter the following dial peer voice 108 voip destination pattern 1408528 codec g711alaw session target ipv4 10 0 0 8 Configure VAD for a...

Page 82: ... each DLCI would use 32 kbps of a 64 kbps line Apply adaptive traffic shaping to both DLCIs Use RSVP or IP precedence to prioritize voice traffic Use compressed RTP to minimize voice packet size Use weighted fair queuing to manage voice traffic Lower MTU size Voice packets are generally small By lowering the maximum transmission unit MTU size for example to 300 bytes large data packets can be brok...

Page 83: ...relay ip rtp header compression In this configuration example the main interface has been configured as follows MTU size is 300 bytes No IP address is associated with this serial interface The IP address must be assigned for the subinterface Encapsulation method is Frame Relay Fair queuing is enabled IP RTP header compression is enabled The subinterface has been configured as follows MTU size is i...

Page 84: ...on page viii Troubleshooting Tips If information about the port adapter is not indicated in show command output it is probably because the card type has not been specified Because the port adapter can be configured for E1 or T1 connectivity you must specify the card type as E1 or T1 as described in Performing a Basic Configuration section on page 4 4 There is no default card type The port adapter ...

Page 85: ... the names and sources of configuration files and the boot images Note The outputs that appear in this document may not match the output you receive when running these commands The outputs in this document are examples only Cisco 7200 Series and Cisco 7200 VXR Routers Following is an example of the show version command from a Cisco 7206VXR router Router show version Cisco Internetwork Operating Sy...

Page 86: ...ze 256K Configuration register is 0x0 Cisco 7401ASR Routers Following is an example of the show version command from a Cisco 7401ASR router with the PA VXB 2TE1 port adapter shown as a voice resource Router show version Cisco Internetwork Operating System Software IOS tm 7401ASR Software C7401ASR IS M Version 12 0 5 XE3 TAC Home SW IOS Specials for info Copyright c 1986 1999 by cisco Systems Inc C...

Page 87: ...software Version 1 1 Chassis Interface 1 VIP2 controller 4 T1 1 ATM 2 Voice resources 2 VIP2 R5K controllers 8 Ethernet 4 T1 1 ATM 2 Voice resources 8 Ethernet IEEE 802 3 interface s 24 Serial network interface s 2 ATM network interface s 125K bytes of non volatile configuration memory 20480K bytes of Flash PCMCIA card at slot 0 Sector size 128K 20480K bytes of Flash PCMCIA card at slot 1 Sector s...

Page 88: ...insertion time 4d21h ago EEPROM contents at hardware discovery Hardware revision 1 0 Board revision K0 Serial number 14320311 Part number 73 3861 03 Test history 0x0 RMA number 00 00 00 EEPROM format version 1 EEPROM contents hex 0x20 01 CF 01 00 00 DA 82 B7 49 0F 15 03 00 00 00 00 0x30 A0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Cisco 7500 Series Routers Following is an example of the show di...

Page 89: ...ation and Configuration OL 3592 02 Chapter 4 Configuring the PA VXA PA VXB and PA VXC Checking the Configuration VXC 2T1 E1 Port adapter 2 ports EEPROM format version 4 HW rev 0 02 Board revision A0 Serial number MIC04251WXZ Part number 73 5340 03 ...

Page 90: ...0 usec reliability 255 255 txload 1 255 rxload 1 255 Encapsulation ARPA loopback not set C549 DSP Firmware Version MajorRelease MinorRelease BuildNumber DSP Boot Loader 255 255 255 DSP Application 3 2 10 Medium Complexity Application 3 2 12 High Complexity Application 3 2 12 Total DSPs 29 DSP0 DSP29 Jukebox DSP id 30 Down DSPs none Restarted DSPs due to background keep alive failures DSPid number ...

Page 91: ...eived 0 broadcasts 0 runts 0 giants 0 throttles 0 input errors 0 CRC 0 frame 0 overrun 0 ignored 0 abort 239246561 packets output 626450944 bytes 0 underruns 0 output errors 0 collisions 0 interface resets 0 output buffer failures 0 output buffers swapped out Cisco 7500 Series Routers Following is an example of the show interfaces DSPfarm command for Cisco 7500 series routers In this example the P...

Page 92: ...ending on the mode of the port issuing the loopback command checks the following paths When no compact serial cable is attached to the PA VXB or PA VXC interface port or if a DCE cable is attached to a port that is configured as line protocol up the loopback command tests the path between the network processing engine and the interface port only without leaving the network processing engine and po...

Page 93: ...mmands one per line End with CNTL Z Router config controller t1 2 0 Router config controller loopback local payload Cisco 7401ASR Routers Router config t Enter configuration commands one per line End with CNTL Z Router config controller t1 1 0 Router config controller loopback local payload Cisco 7500 Series Routers Router config t Enter configuration commands one per line End with CNTL Z Router c...

Page 94: ...lows loopback diagnostic Set the first E1 into diagnostic loopback Cisco 7200 Series Routers Router config t Enter configuration commands one per line End with CNTL Z Router config controller E1 2 0 Router config controller loopback diagnostic Cisco 7401ASR Routers Router config t Enter configuration commands one per line End with CNTL Z Router config controller E1 1 0 Router config controller loo...

Page 95: ...figuration commands one per line End with CNTL Z Router config controller E1 1 0 Router config controller loopback local payload Cisco 7500 Series Routers Router config t Enter configuration commands one per line End with CNTL Z Router config controller E1 2 2 0 Router config controller loopback local payload In the preceding examples the loopback local command loops the incoming signal back to th...

Page 96: ...4 46 T1 E1 Digital Voice Port Adapter Installation and Configuration OL 3592 02 Chapter 4 Configuring the PA VXA PA VXB and PA VXC Checking the Configuration ...

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