Chapter 5: Configuring Voice Ports and Dial Peers for Voice 5-1 Copyright © 1998, Cisco Systems, Inc.

5-2CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Given an IP, Frame Relay, or ATM network, configure and verify the voice ports so you properly interface to the attached telephony devices Given a Cisco router capable of transporting voice, configure and verify POTS dial peers so you can place calls to others connected to your router Given a VoIP, VoFR, or VoATM network, configure and verify VoIP, VoFR, or VoATM dial peers so you can place calls to others connected to your router Objectives Upon completion of this chapter, you will be able to perform the following tasks:

Introduction 5-3 Copyright © 1998, Cisco Systems, Inc.

Configuring and Verifying Voice Ports 5-4 Copyright © 1998, Cisco Systems, Inc.

5-5CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring Voice Ports Router(config)# voice-port slot-number/subunit-number/port Enters voice port configuration mode on your 2600 or 3600 router Router(config)# voice-port slot/port Enters voice port configuration mode on your MC3810 router Router(config)# voice-port controller number:D Enters voice port configuration mode on your AS5300 access server

5-6CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Basic Voice Port Settings Router(config-voiceport)# codec { g729r8 | g729ar8 } Sets the codec compression mode Router(config-voiceport)# connection { plar | tie-line } string Specifies a connection mode for your voice port Router(config-voiceport)# dial-type { dtmf | pulse } Specifies the address signaling for out-dialing

5-7CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Basic Voice Port Settings (cont.) Router(config-voiceport)# cptone country Sets a voice call progress tone locale Router(config-voiceport)# description string Describes what your voice port connects to Router(config-voiceport)# no shutdown Activates your voice port

5-8CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring FXO Voice Ports Router(config-voiceport)# signal { loop-start | ground-start } Sets the signaling type Router(config-voiceport)# impedance { 600r | 600c | 900r | 900c | complex1 | complex2 } Specifies the terminating impedance on an FXO port Router(config-voiceport)# ring number number Specifies the number of rings before closing a connection

5-9CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring FXO Voice Ports Example R1 IP Cloud (408) (408) 527-… /16 Voice Port 1/0/0 S0/0 Enables loop start signaling Sets the ring number to 5 Enters voice port configuration mode Voice port configurations made to R1: router#configure terminal router(config)#voice-port 1/0/0 router(config-voiceport)#signal loop-start router(config-voiceport)#impedance 600r router(config-voiceport)#ring number 5 Sets the impedance to 600r

5-10CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring FXS Voice Ports Router(config-voiceport)# signal { loop-start | ground-start } Sets the signaling type Router(config-voiceport)# ring frequency number Specifies the ring frequency Router(config-voiceport)# ring cadence [ on1 | off1 ] [ on2 | off2 ] [ on3 | off3 ] [ on4 | off4 ] [ on5 | off5 ] [ on6 | off6 ] Sets the number of on-off pulses for the ring

5-11CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring FXS Voice Ports Example R1 IP Cloud (408) (408) 527-… /16 Voice Port 1/0/0 S0/0 Enables loop start signaling Enters voice port configuration mode Sets the ring frequency to 25 Hz Voice port configurations made to R1: router#configure terminal router(config)#voice-port 1/0/0 router(config-voiceport)#signal loop-start router(config-voiceport)#ring frequency 25

5-12CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring E&M Voice Ports Router(config-voiceport)# operation { 2-wire | 4-wire } Specifies either a 2-wire or 4-wire cabling scheme Router(config-voiceport)# signal { wink-start | immediate | delay-dial } Requests a signaling type Router(config-voiceport)# type { 1 | 2 | 3 | 5 } Specifies the E&M interface type

5-13CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring E&M Voice Ports Example R1 IP Cloud (408) (408) 527-… /16 Voice Port 1/0/0 S0/0 Enables wink-start signaling Specifies 2-wire wiring scheme Enables E&M Type I wiring scheme Enters voice port configuration mode Voice port configurations made to R1: router#configure terminal router(config)#voice-port 1/0/0 router(config-voiceport)#signal wink-start router(config-voiceport)#operation 4-wire router(config-voiceport)#type 1 (408) 527-…. PBX

5-14CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. General Voice Port Tuning Options Router(config-voiceport)# input gain value Configures a specific input gain for the receiver Router(config-voiceport)# output attenuation value Sets the output loss for that transmit side

5-15CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. General Voice Port Tuning Options (cont.) Router(config-voiceport)# echo-cancel enable Enables echo cancel Router(config-voiceport)# echo-cancel coverage { 8 | 16 | 24 | 32 } Sets the coverage time for echo canceller Router(config-voiceport)# non-linear Enables nonlinear processing in the echo canceller

5-16CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. General Voice Port Tuning Options (cont.) Router(config-voiceport)# timeouts initial seconds Configures voice port initial timeout values Router(config-voiceport)# timeouts interdigit seconds Configures voice port interdigit timeout values Router(config-voiceport)# timing Enables various timing parameters Router(config-voiceport)# vad Enables voice activity detection

5-17CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Verifying Voice Ports voip11#show voice port Foreign Exchange Station 1/0/0 Slot is 1, Sub-unit is 0, Port is 0 Type of VoicePort is FXS Operation State is DORMANT Administrative State is UP No Interface Down Failure Analog Info Follows: Region Tone is set for northamerica Currently processing Voice Maintenance Mode Set to None (not in mtc mode) Number of signaling protocol errors are 0 Impedance is set to 600r Ohm Voice card specific Info Follows: Signal Type is loopStart Ring Frequency is 25 Hz Hook Status is On Hook FXS voice port 1/0/0

ISDN PRI Option with Copyright © 1998, Cisco Systems, Inc.

5-19CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring Voice Ports for ISDN PRI on the 5300 Router(config)# controller [ t1 | e1 ] [ 0 | 1 | 2 | 3 ] Enter controller configuration mode Router(config)# isdn switch-type [ primary-4ess | primay-5ess | primary-dms100 | primary-net5 | primary-ntt | primary-ts014 ] Specifies your telephone companys switch type

5-20CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring Voice Ports for ISDN PRI on the 5300 (cont.) Router(config-controller)# clock source [ line primary | line secondary | internal ] Selects clock source for time-division multiplexing Router(config-controller)# linecode [ ami | b8zs | hdb3 ] Specifies your telephone companys line code Router(config-controller)# pri-group timeslots [ 1-24 | 1-31 ] Specifies all channels for ISDN Router(config-controller)# framing [ esf | sf | crc4 | nocrc4 ] Specifies your telephone companys framing type

5-21CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring the D Channels Router(config-if)# isdn incoming-voice modem Configures all incoming voice calls to go to the modem Router(config)# interface serial [ controller:15 | controller:23 ] Enters interface configuration mode

Configuring and Verifying Dial Peers 5-22 Copyright © 1998, Cisco Systems, Inc.

5-23CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Identifying POTS and Voice over Dial Peers The POTS dial peer tells the destination router which voice port to forward incoming voice packets The VoFR, VoATM, or VoIP dial peer tells the source router the destination routers network address Voice Capable Router POTS Packet Network Cloud Voice over (i.e., FR, ATM, IP) Telephony Device Voice Capable Router

5-24CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Employee Name Empire State Building New York, NY, USA Anywhere London, England Step 1: Sender sends letter with destination address act like a VoIP dial peer specifying recipients address Step 2: Mailroom, acting like the recipients router, receives letter, and searches for recipient on buildings employee database, which acts like recipients POTS dial peer Dial Peers Analogy Step 3: Letter is routed to receiver

5-25CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Four call legs are necessary for an end-to-end telephony conversation, two configured in each router Establishing Dial Peer Call Legs 3600 IP Cloud 3600 Destination Call Leg 1 for POTS Dial Peer 1 Call Leg 2 for VoIP Dial Peer 2 Call Leg 3 for VoIP Dial Peer 3 Call Leg 4 for POTS Dial Peer 4 Dial Peer 1Dial Peer 3 Dial Peer 2 Dial Peer 4 Source

5-26CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring POTS Dial Peers Router(config)# dial-peer voice tag-number pots Enters POTS dial peer configuration mode Router(config-dial-peer)# destination-pattern [ + ] string Specifies the prefix or full E.164 telephone number to be used for a dial peer Router(config-dial-peer)# port slot-number/subunit-number/port Specifies voice port the telephony device attaches to on a POTS dial peer on a 2600 or 3600

5-27CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring POTS Dial Peers (cont.) Router(config-dial-peer)# prefix string Specifies the prefix for the dialed digits on a dial peer

5-28CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring POTS Dial Peers Example R1 Configuration for dial peer 1 on R1: dial-peer voice 1 pots destination-pattern port 1/0/0 (408) Dial Peer 1 (408) 527-…. Voice Port 1/0/0

5-29CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring VoFR, VoATM, or VoIP Dial Peers Router(config-dial-peer)# destination-pattern [ + ] string Specifies the prefix or full E.164 telephone number to be used for a dial peer Router(config)# dial-peer voice tag-number { vofr | voatm | voip } Enters VoFR, VoATM, or VoIP dial peer configuration mode Router(config-dial-peer)# session-target { serial interface dlci | serial 2 number | ipv4:IP address } Specifies the dial peers network address

5-30CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring VoIP Dial Peers Example R1 IP Cloud R2 Configuration for dial peer 2 on R1: dial-peer voice 2 voip destination-pattern session target ipv4: (408) Dial Peer 1Dial Peer 2 (214) 444-….(408) 527-… Voice Port 1/0/0

5-31CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Dial Peer Configuration Example Configuration made on R1: dial-peer voice 1 pots destination-pattern port 1/0/0 dial-peer voice 2 voip destination-pattern session target ipv4: Configuration made on R2: dial-peer voice 4 pots destination-pattern port 1/0/1 dial-peer voice 3 voip destination-pattern session target ipv4: R1 IP Cloud R2 (408) Dial Peer 1Dial Peer 3Dial Peer 2Dial Peer 4 (214) (214) 444-….(408) 527-… Voice Port 1/0/0 Voice Port 1/0/1

5-32CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configuring Dial Peers on Same Router Example R2 Configuration made on router 1: dial-peer voice 1 pots destination-pattern port 1/0/0 dial-peer voice 5 pots destination-pattern port 1/0/1 IP Cloud (408) Dial Peer 1 Dial Peer 5 (408) 527-… Voice Port 1/0/0 Voice Port 1/0/1 (408) No VoIP dial peer required to place calls to telephony devices on same router Call connectivity between dial peer 1 and dial peer 5 R1

5-33CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Verifying Dial Peer Configuration show dial-peer voice Output router#show dial-peer voice VoiceEncapPeer11 tag = 11, destination-pattern = ` ', answer-address = `', group = 11, Admin state is up, Operation state is up type = pots, prefix = `', session-target = `', voice-port = 1/0/0 Connect Time = 46214, Charged Units = 0 Successful Calls = 50, Failed Calls = 0 Accepted Calls = 65, Refused Calls = 0 Last Disconnect Cause is "10 " Last Disconnect Text is "normal call clearing." Last Setup Time =

5-34CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Verifying Dial Peer Configuration show dial-peer voice Output (cont.) VoiceOverIpPeer110 tag = 110, destination-pattern = ` ', answer-address = `', group = 110, Admin state is up, Operation state is up type = voip, session-target = `ipv4: ', ip precedence: 0 UDP checksum = disabled session-protocol = cisco, req-qos = best-effort, acc-qos = best-effort, fax-rate = voice, codec = g729r8, Expect factor = 10, Icpif = 30, VAD = enabled, Poor QOV Trap = disabled Connect Time = 44739, Charged Units = 0 Successful Calls = 35, Failed Calls = 0 Accepted Calls = 35, Refused Calls = 0 Last Disconnect Cause is "10 " Last Disconnect Text is "normal call clearing." Last Setup Time =

Lab Exercise 5-35 Copyright © 1998, Cisco Systems, Inc.

5-36CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Lab Setup R1 FXS 1/0/0 FXS 1/0/1 1(408) (408)

5-37CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc.

5-38CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc.

5-39CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Configure and verify the voice ports so you properly interface to the attached telephony devices Configure and verify POTS dial peers so you can place calls to others connected to your router Configure and verify VoIP, VoFR, or VoATM dial peers so you can place calls to others in your voice network Summary In this chapter you learned how to complete the following tasks:

5-40CVOICEConfiguring Voice Ports and Dial Peers for Voice Copyright © 1998, Cisco Systems, Inc. Blank for IG Pagination