1 / 61

CCNA Voice 640-461 Cert Guide

CHAPTER 6 Understanding the CME Dial-Plan. CCNA Voice 640-461 Cert Guide. Analog Voice Port Configuration: Foreign Exchange Station Ports (FXS): Used to connect analog devices such as analog phones, fax machines or modems to the router.

judithvalencia
Download Presentation

CCNA Voice 640-461 Cert Guide

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CHAPTER 6 Understanding the CME Dial-Plan CCNA Voice 640-461 Cert Guide

  2. Analog Voice Port Configuration: • Foreign Exchange Station Ports (FXS): Used to connect analog devices such as analog phones, fax machines or modems to the router. • Foreign Exchange Office Ports (FXO): Used to connect to the PSTN central office (CO) or a Private Branch Exchange (PBX) • Use the Router#show voice port summary

  3. Analog Voice Port Configuration: • Configure FXS: • Signaling • Caller ID information • Call progress tone

  4. Analog Voice Port Configuration: • Configure FXO: • Dial-type • Ring number (rings before answering)

  5. Digital Voice Port Configuration: • T1 or E1 Voice and WAN Interface Cards (VWIC) • Must be configured before using (unlike FXO or FXS) • Can use Channel Associated Signaling (CAS) • Can also use Common Channel Signaling (CCS) • Router(config)#controller t1 1/0 • Router(config-controller)#framing esf • Router(config-controller)#clock source line • NOTE: Better to use line clocking provided from PSTN or provider • Router(config-controller)#ds0-group 1 timeslots 1-24 type fxo-loop-start

  6. Digital Voice Port Configuration: • Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) • Uses Chanel Associated Signaling (CAS) • Router(config)#isdn switch-type primary-5ess • Router(config)#controller t1 1/0 • Router(config-controller)#pri-group timeslots 1-24 • Router(config-controller)#show voice port summary

  7. Configuring Dial Peers: • POTS dial peer: Used to define voice reachability information for any traditional (analog) connection • VoIP dial peer:Used to define any voice connection available through IP addressing

  8. Call Legs: • Any voice connection too or from a voice port or connection or voice device • Call Leg 1:The incoming POTS call leg from x1101 on CME_A • Call Leg 2: The outgoing VoIP call leg from CME_A to ROUTER_B • Call Leg 3: The incoming VoIP call leg on ROUTER_B from CME_A • Call Leg 4: The outgoing POTS call leg to x2510 from ROUTER_B

  9. Configuring POTS Dial Peers for FXS Ports: CME_A(config)#dial-peer voice 1101 pots CME_A(config-dial-peer)#destination-pattern 1101 CME_A(config-dial-peer)#port 0/0/0 CME_A(config-dial-peer)#exit CME_A(config)#dial-peer voice 1102 pots CME_A(config-dial-peer)#destination-pattern 1102 CME_A(config-dial-peer)#port 0/0/1

  10. Configuring Dial Peers: • Router#show dial-peer voice summary

  11. Configuring POTS Dial Peer for T1: Router_B(config)#dial-peer voice 2000 pots Router_B(config-dial-peer)#destination-pattern 2… Router_B(config-dial-peer)#no digit-strip Router_B(config-dial-peer)#port 1/0:23

  12. Configuring VoIP Dial Peer: CME_A(config)#dial-peer voice 2000 voip CME_A(config-dial-peer)#destination-pattern 2… CME_A(config-dial-peer)#session target ipv4:10.1.1.2 CME_A(config-dial-peer)#codec g711ulaw • If the configured codec does not match the opposite end then the call will fail. The default codec is G.729 Router_B(config)#dial-peer voice 1000 voip Router_B(config-dial-peer)#destination-pattern 1… Router_B(config-dial-peer)#session target ipv4:10.1.1.1 Router_B(config-dial-peer)#codec g711ulaw

  13. Using Dial-Peer Wildcards: • Period (.): Will match any digit • Plus(+): matches one or more instances of the preceding digits • Brackets ([]): Matches a range of digits • T: matches any dialed number from 0-32 digits • Carrot (^): Does not match • Comma (,): Inserts a one-second pause between dialed digits • Example: • 555[1-3]… Matches: 5551…, 5552…, 5553… (Where … is any three digits) • 5+23 Matches 5523, 55523, 55523 • [14-6]555 Matches 1555, 4555, 5555, 6555 • 55[59]12 Matches 55512, 55912 • [^1-7]..[135] Matches 8..1, 8..3, 8..5, 9..1, 9..3, 9..5 (Where is any two digits)

  14. Digit Manipulation:

  15. Digit Manipulation Problem:

  16. Digit Manipulation Problem Answer:

  17. North American Dial Plan: • [2-9]…… Used for 7-digit dialing • [2-9]..[2-9]…… Used for 10-digit dialing • 1[2-9]..[2-9]…… Used for 11-digit dialing • [469]11 Used for service numbers • 011T Used for international dialing

  18. North American Dial Plan: Router(config)#dial-peer voice 90 pots Router(config-dial-peer)#description Service Dialing Router(config-dial-peer)#destination-pattern 9[469]11 Router(config-dial-peer)#forward-digits 3 Router(config-dial-peer)#port 1/0:1 Router(config-dial-peer)#dial-peer voice 91 pots Router(config-dial-peer)#description 10-Digit Dialing Router(config-dial-peer)#destination-pattern 9[2-9]..[2-9]…… Router(config-dial-peer)#forward-digits 10 Router(config-dial-peer)#port 1/0:1 Router(config-dial-peer)#dial-peer voice 92 pots Router(config-dial-peer)#description 11-Digit Dialing Router(config-dial-peer)#destination-pattern 91[2-9]..[2-9]…… Router(config-dial-peer)#forward-digits 11 Router(config-dial-peer)#port 1/0:1 Router(config-dial-peer)#dial-peer voice 93 pots Router(config-dial-peer)#description International Dialing Router(config-dial-peer)#destination-pattern 9011T Router(config-dial-peer)#prefix 011 Router(config-dial-peer)#port 1/0:1

  19. Private Line Automatic Ringdown (PLAR): Router(config)#voice-port 2/0/0 Router(config-voiceport)#connection plar 1500 Router(config-voiceport)#voice-port 2/0/1 Router(config-voiceport)#connection plar 1500

  20. Call Processing: • Most specific pattern wins • Once a match is found the call is processed • Router(config)#dial-peer voice 1 voip • Router(config-dial-peer)#destination-pattern 555[1-3]… • Router(config-dial-peer)#session target ipv4:10.1.1.1 • Router(config-dial-peer)#dial-peer voice 2 voip • Router(config-dial-peer)#destination-pattern 5551… • Router(config-dial-peer)#session target ipv4:10.1.1.2 • If a user dials 5551234 dial-peer 2 will be used because it is a more specific match

  21. Call Processing: • Most specific pattern wins • Once a match is found the call is processed • Router(config)#dial-peer voice 1 voip • Router(config-dial-peer)#destination-pattern 555[1-3]… • Router(config-dial-peer)#session target ipv4:10.1.1.1 • Router(config-dial-peer)#dial-peer voice 2 voip • Router(config-dial-peer)#destination-pattern 5551… • Router(config-dial-peer)#session target ipv4:10.1.1.2 • Router(config-dial-peer)#dial-peer voice 3 voip • Router(config-dial-peer)#destination-pattern 5551 • Router(config-dial-peer)#session target ipv4:10.1.1.3 • If a user dials 5551234 dial-peer 3 will be used because it is a more specific match. Router will drop the last three digits and only route the 5551 (Useful for emergency calls)

  22. Matching Inbound and Outbound Dial Peers: Match the dialed number (DNIS) using the incoming called numberdial peer Match the called ID information (ANI) using the answer-address dial-peer configuration Match the caller ID information (ANI) using the destination-pattern dial-peer configuration Match an incoming POTS dial peer by using the port dial-peer configuration If no match has been found using the previous four methods, use dial peer 0

  23. Call Leg 1: (No Match) 2510 The dialed number does not match an incoming called-number dial peer (No Match) x1101 Caller ID information (ANI) does not match the answer-address dial peer configuration on CME_A (No Match) x1101 Caller ID information (ANI) does not match the destination-pattern dial peer configuration on CME_A (Match) x1101 comes in FXS port 1/0/0 which matches an incoming POTS dial peer on CME_A by using the port dial peer configuration command

  24. Call Leg 3: (No Match) 2510 The dialed number does not match an incoming called-number dial peer on ROUTER_B (No Match) x1101 Caller ID information (ANI) does not match the answer-address dial peer configuration on ROUTER_B (Match) x1101 Caller ID information (ANI) does match the destination-pattern dial peer configuration command for the VoIP dial peer 1101 on ROUTER_B

  25. Call Leg 4: (No Match) 2510 The called number does not match an incoming called number (No Match) x1101 Caller ID information (ANI) does not match the answer-address dial peer configuration on ROUTER_B (No Match) x1101 Caller ID information (ANI) does not match the destination-pattern dial peer configuration (No Match) x1101 did not come into a POTS interface (FXS, FXO, E&M, Voice BRI/T1/E1 digital interface that could be matched using the port command. It came via VoIP (Match) Because ROUTER_B could not find a match it will use dial peer 0

  26. Dial Peer 0: • Default Dial Peer • Uses any voice codec (Not hard coded) • No DTMF relay: DTMF relay sends dial tones outside of the audio stream • IP Precedence 0: Strips all QoS markings. Calls will now be sent as if they were normal data • Voice Activity Detection (VAD) enabled: Allows bandwidth savings by not transmitting dead time • No Resource Reservation Protocol (RSVP) support: The router will not reserve end-to-end bandwidth • Fax-rate voice: The router will limit fax bandwidth to that of the VoIP codec. Can devastate fax calls • No application support: calls cannot be referred to outside applications • No Direct Inward Dial (DID) support: Cannot use the DID feature to forward calls to an internal device from an PSTN source

  27. Digit Manipulation: • prefix digits: Allows for digits to be added to be specified • forward-digits number: Allows for the number of digits that will be forwarded • [no] digit-strip: Enables (default) or disables digit stripping • num-exp: Transforms any number dialed that matches pattern. Example: num-exp 4… 5… Call 4321 converted to 5321 • Example: num-exp 0 5000 Call 0 converted to 5000 • voice translation profile: Allows a translation profile of up to 15 rules to be transform the number

  28. POTS Failover: • If the VoIP network fails, the phone system should automatically switch to the POTS system

  29. POTS Failover Configuration: Arizona(config)#dial-peer voice 10 voip Arizona(config-dial-peer)#destination-pattern 6… Arizona(config-dial-peer)#session target ipv4:10.1.1.2 Arizona(config-dial-peer)#preference 0 Arizona(config-dial-peer)#dial-peer voice 11 pots Arizona(config-dial-peer)#destination pattern 6… Arizona(config-dial-peer)#port 1/0:1 Arizona(config-dial-peer)#preference 1 Arizona(config-dial-peer)#no digit-strip Arizona(config-dial-peer)#prefix 1512555 Texas(config)#dial-peer voice 10 voip Texas(config-dial-peer)#destination-pattern 5… Texas(config-dial-peer)#session target ipv4:10.1.1.1 Texas(config-dial-peer)#preference 0 Texas(config-dial-peer)#dial-peer voice 11 pots Texas(config-dial-peer)#destination pattern 5… Texas(config-dial-peer)#port 1/0:1 Texas(config-dial-peer)#preference 1 Texas(config-dial-peer)#no digit-strip Texas(config-dial-peer)#prefix 1480555

  30. Using num-exp to Transform numbers: Router(config)#voice-port 1/0/1 Router(config-voiceport)#connection plar 0 Router(config-voiceport)#exit Router(config)#num-exp 0 5000 • Connects any dialed 0, to the receptionist within the company at extension 5000

  31. POTS Lines for Emergency Calls: Remote_RTR(config)#dial-peer voice 10 pots Remote_RTR(config-dial-peer)#destination-pattern 911 Remote_RTR(config-dial-peer)#port 1/0/0 Remote_RTR(config-dial-peer)#no digit strip Remote_RTR(config-dial-peer)#dial-peer voice 11 pots Remote_RTR(config-dial-peer)#destination pattern 9911 Remote_RTR(config-dial-peer)#port 1/0/0 Remote_RTR(config-dial-peer)#forward-digits 3 Remote_RTR(config-dial-peer)#dial-peer voice 12 pots Remote_RTR(config-dial-peer)#destination pattern 911 Remote_RTR(config-dial-peer)#port 1/0/1 Remote_RTR(config-dial-peer)#no digit-strip Remote_RTR(config-dial-peer)#dial-peer voice 13 pots Remote_RTR(config-dial-peer)#destination pattern 9911 Remote_RTR(config-dial-peer)#port 1/0/1 Remote_RTR(config-dial-peer)#forward-digits 3

  32. POTS Lines for Emergency Calls:

  33. Translation Rule: • Define the rules that dictate how the router will transform the number • Associate the rules to a profile • Associate the profile to a dial peer • Format: rule 1 /match/ /set/ Router(config)#voice translation-rule 1 Router(config-translation-rule)#rule 1 /6/ /5/ • Match the number “6” and replace with a “5”

  34. Translation Profile: • Define the rules that dictate how the router will transform the number • Associate the rules to a profile • Associate the profile to a dial peer Router(config)#voice translation-profile CHANGE_DID Router(config-translation-profile)#translate called 1 Router(config-translation-profile)#dial-peer voice 100 pots Router(config)#dial-peer voice 100 pots Router(config-dial-peer)#translation-profile incoming CHANGE_DID

  35. Translation Profile:

  36. Translation Order: num-exp Applied 1st Automatic digit strip (POTS dial peers) Applied 2nd Voice translation profiles Applied 3rd Prefix digits Applied 4th forward-digits Applied 5th

  37. Class of Restriction (COR): • Prevent employees from making international calls but allow management • Block high cost numbers such as 1-900 • Prevent certain internal phones from reaching executive office numbers

  38. Class of Restriction (COR): • Defining COR List Tags • Router(config)#dial-peer cor custom • Router(config-dp-cor)#name 911 • Router(config-dp-cor)#name LOCAL • Router(config-dp-cor)#name LD • Create Outgoing COR List • Router(config)#dial-peer corlist 911-CALL • Router(config-dp-corlist)#member 911 • Router(config-dp-corlist)#exit • Router(config)#dial-peer cor list LOCAL-CALL • Router(config-dp-corlist)#member LOCAL • Router(config-dp-corlist)#exit • Router(config)#dial-peer cor list LD-CALL • Router(config-dp-corlist)#member LD • Router(config-dp-corlist)#exit

  39. Class of Restriction (COR): • Defining Incoming COR Lists • Router(config)#dial-peer cor list 911-ONLY • Router(config-dp-corlist)#member 911 • Router(config-dp-corlist)#exit • Router(config)#dial-peer cor list 911-LOCAL • Router(config-dp-corlist)#member 911 • Router(config-dp-corlist)#member LOCAL • Router(config-dp-corlist)#exit • Router(config)#dial-peer cor list 911-LOCAL-LD • Router(config-dp-corlist)#member 911 • Router(config-dp-corlist)#member LOCAL • Router(config-dp-corlist)#member LD • Router(config-dp-corlist)#exit

  40. Class of Restriction (COR): • Assigning Outbound and Inbound COR Lists • Router(config)#dial-peer voice 10 pots • Router(config-dial-peer)#corlist outgoing 911-CALL • Router(config-dial-peer)#exit • Router(config)#dial-peer voice 11 pots • Router(config-dial-peer)#corlist outgoing LOCAL-CALL • Router(config-dial-peer)#exit • Router(config)#dial-peer voice 12 pots • Router(config-dial-peer)#corlist outgoing LD-CALL • Router(config-dial-peer)#exit • Router(config)#ephone-dn 1 • Router(config-ephone-dn)#corlist incoming 911-ONLY • Router(config-ephone-dn)#exit • Router(config)#ephone-dn 2 • Router(config-ephone-dn)#corlist incoming 911-LOCAL • Router(config-ephone-dn)#exit • Router(config)#ephone-dn 3 • Router(config-ephone-dn)#corlist incoming 911-LOCAL-LD • Router(config-ephone-dn)#exit

  41. Class of Restriction (COR): • Rules: • If there is no outgoing COR list applied then the call is always routed • If there is no incoming COR list applied then the call is always routed

More Related