Cisco Systems - VoIP Networking Designed_Slides

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Cisco Systems - VoIP Networking Designed_Slides

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VoIP Networking Design 1171_04F8_c1 Tim Danford tdanford@cisco.com +1.978.244.8911 1171_04F8_c1 Agenda •Intended VoIP Applications •VoIP Introduction •Packet Networking Challenges •Cisco QoS Toolkit •Voice Network Design Issues •Network Design Examples 1171_04F8_c1 VoIP Gateway Applications •PSTN gateway service •Route replacement/toll bypass Most common application •PBX OPX “extension” •H.323 interoperability Supports voice-enabled Web applications 1171_04F8_c1 Internet Telephony Service Provider ISP “A” Settlement Provider Local PSTN (Trusted 3rd Party) Authentication, Call Routing, Billing and Settlement Server V QoS Interconnect (or Internet) ISP “B” POP (i) ISP “A” Backbone V POP (ii) 1171_04F8_c1 Local PSTN ISP “B” Backbone Local PSTN V Route Replacement PBX PSTN T1,E1 PBX Telco Switch V V QoS WAN (Intranet/Internet) Branch Office 1171_04F8_c1 Main Office PBX OPX Transport PSTN PBX Telco Switch to 12 Analog V 3600’s with Voice Module V Fax QoS WAN Branch Office 1171_04F8_c1 Main Office H.323 Interoperability • H.323 VoIP Local Loop Bypass • Integrated Messaging: Email, VMail, FaxMail Business • Interoperability with NetMeeting type programs PSTN PBX PBX I-Phone H.323 S/W V I-Phone H.323 S/W Router + VoIP QoS WAN Local PSTN POP Residential Internet xDSL I-Phone H.323 S/W Residential 1171_04F8_c1 V DSLAM xDSL Modem 2nd Line Phone Main Office Agenda •Intended VoIP Applications • VoIP Introduction •Packet Networking Challenges •Cisco QoS Toolkit •Voice Network Design Issues •Network Design Examples 1171_04F8_c1 Network Convergence Applications IP IP PPP 802.N WAN Campus L3 L2 Service Adaptation Frame Relay ATM Sonet L1 1171_04F8_c1 F-T1 DS1 DS3 OC3 - OCn 10 Virtual Switching V PBX V QoS WAN V V KTS/ PBX Dial Plan Integration 1171_04F8_c1 72 Example Network Config Coachman x8nnn +19782448nnn Midge Highlander V x6nnn x7nnn Tie Trunk DA=2 X1nnn Mayfly V 1171_04F8_c1 tg1 DA=9 PSTN 73 Basic Dial-Peer Configuration Midge x1121 FXS 1/1/0-1 V Mayfly IP Network V x1122 1171_04F8_c1 FXS 2/1/0-1 x1232 10.3.0.1 local-peer x1231 ! dial-peer voice 10 pots group 10 destination-pattern +19782441121 port 1/1/0 ! dial-peer voice 11 pots group 11 destination-pattern +19782441122 port 1/1/1 ! dial-peer voice 20 voip group 20 destination-pattern 197824412 session target ipv4:10.5.0.1 ! num-exp 1231 19782441231 num-exp 1232 19782441232 10.5.0.1 ! dial-peer voice 10 voip network-peer group 10 destination-pattern 197824411 session target ipv4:10.3.0.1 ! dial-peer voice 11 pots group 11 destination-pattern +19782441231 port 2/1/0 ! dial-peer voice 20 pots group 20 destination-pattern +19782441232 port 2/1/1 ! num-exp 1121 19782441121 num-exp 1122 19782441122 74 Example Network Config x8nnn +19782448nnn Coachman Midge Highlander x1121 10.6.0.1 V 10.6.0.2 x1122 mayfly x1231 V x6nnn x7nnn Tie Trunk DA=2 tg1 DA=9 Call Completes HS to HS PSTN x1232 1171_04F8_c1 75 Network Peers x1121 FXS 1/1/0-1 10.3.0.1 V Midge x1122 x1121 FXS 2/1/0-1 10.5.0.1 V Mayfly x1122 1171_04F8_c1 ! dial-peer voice 21 voip group 21 destination-pattern 9… … … session target ipv4:10.6.0.2 ! dial-peer voice 22 voip group 22 destination-pattern session target ipv4:10.6.0.2 ! dial-peer voice 23 voip group 23 destination-pattern 6… session target ipv4:10.6.0.2 ! dial-peer voice 24 voip group 24 destination-pattern 7… session target ipv4:10.6.0.2 ! 76 Configure Highlander Coachman Highlander 10.6.0.1 10.6.0.2 ! controller T1 framing esf clock source line primary linecode b8zs pri-group timeslots 1-24 ! ISDN PRI or CAS Group 1171_04F8_c1 77 Configure Highlander Coachman Highlander 10.6.0.1 10.6.0.2 Local Dial Peers 1171_04F8_c1 ! dial-peer voice pots destination-pattern +6 +6 port 0:D prefix 2,6 ! dial-peer voice pots destination-pattern +7 +7 port 0:D prefix 2,7 ! dial-peer voice pots destination-pattern +8 +8 port 0:D prefix ! dial-peer voice pots destination-pattern +9… +9… … … port 0:D prefix 9, ! 78 Configure Highlander Coachman Highlander 10.6.0.1 10.6.0.2 ! dial-peer voice 112 voip destination-pattern 112 session target ipv4:10.3.0.1 ! dial-peer voice 123 voip destination-pattern 123 session target ipv4:10.5.0.1 ! Network Dial Peers 1171_04F8_c1 79 Example Network Config x8nnn +19782448nnn Coachman Midge Highlander 10.6.0.1 x1121 V 10.6.0.2 x1122 Mayfly x1231 V x6nnn x7nnn Tie Trunk DA=2 tg1 DA=9 PSTN x1232 1171_04F8_c1 80 QoS and CODEC options midge(config-dial-peer)#req-qos ? midge(config-dial-peer)#acc-qos ? best-effort Best Effort controlled-load Controlled Load guaranteed-delay Guaranteed Delay midge(config-dial-peer)#ip precedence ? Packet IP precedence value midge(config-dial-peer)#codec ? g711alaw G.711 A Law 64000 bps g711ulaw G.711 u Law 64000 bps g729r8 G.729 8000 bps 1171_04F8_c1 81 Dial-Peer FAX midge(config-dial-peer)#fax ? 14400 FAX 14400 bps 2400 FAX 2400 bps 4800 FAX 4800 bps 7200 FAX 7200 bps 9600 FAX 9600 bps disable Disable Fax Relay voice Highest possible speed allowed by voice rate 1171_04F8_c1 82 Voice Port Configuration midge(config-voiceport)#ring frequency ? 25 ring frequency 25 Hertz 50 ring frequency 50 Hertz midge(config-voiceport)#cptone ? australia locale brazil locale china locale finland locale france locale germany locale japan locale northamerica locale unitedkingdom locale Midge FXS 1/1/0-1 V midge(config-voiceport)#impedance ? 600c 600 Ohms complex 600r 600 Ohms real 900c 900 Ohms complex c1 complex c2 complex 1171_04F8_c1 midge(config-voiceport)#signal ? groundStart Ground Start loopStart Loop Start 83 Voice Port Configuration Midge 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 Impedance is set to 600r Ohm Foreign Exchange Station 1/1/0 Slot is 1, Sub-unit is 1, Port is Type of VoicePort is FXS Operation State is DORMANT Administrative State is UP The Last Interface Down Failure Cause is Administrative Shutdown Alias is NULL Noise Regeneration is enabled Non Linear Processing is enabled Music On Hold Threshold is Set to -38 dBm FXS 1/1/0-1 In Gain is Set to dB Out Attenuation is Set to dB Echo Cancellation is enabled Echo Cancel Coverage is set to 16 ms Connection Mode is normal Connection Number is Initial Time Out is set to 10 s Voice card specific Info Follows: Interdigit Time Out is set to 10 s Signal Type is loopStart Ring Frequency is 25 Hz Hook Status is On Hook Ring Active Status is inactive Ring Ground Status is inactive Tip Ground Status is inactive Digit Duration Timing is set to 100 ms InterDigit Duration Timing is set to 100 ms Hook Flash Duration Timing is set to 600 ms 1171_04F8_c1 Midge V 84 Q&A 1171_04F8_c1 85 1171_04F8_c1 86

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