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CCIE Voice Test

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. What commands are needed to configure the voice register pool in CME?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
Bandwidth
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
Master/Slave relationship. CUCM controls it.

2. How do you configure phone ports on an ESW?
voice register pool|and|voice register dn
8kb/s
Gatekeeper - zone local GK cisco.com 10.1.6.1 - zone local CUCM cisco.com invia GK outvia GK - zone local BR2 cisco.com invia GK outvia GK
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast

3. When can you not use a Standard Local Route Group?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
When configuring TEHO.
Max-dn|max-ephone|ip source-address
#test voice translation rule 1 <input to test>

4. What are the 3 mandatory commands within call-manager-fallback?
Assign SIP Dial Rules
Call Simulator. You can use to validate path from router to the PSTN.
Max-dn|max-ephone|ip source-address
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

5. How do you block an external call from being transferred back out to the pstn by an internal user?
Service Parameter --> Block OffNet To OffNet Transfer --> True
#test voice translation rule 1 <input to test>
'Service Parameters --> Auto Answer Timer
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

6. What CUCM services should you activate?
Dtmf-relay h245-alpha
...
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

7. What are the commands to configure a MGCP Gateway? (router)
Sh ccm-manager
The Called/Calling Transformations are superceded.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Ip domain-name ipexpert.com|network-clock-participate wic 0|isdn switch-type primary-ni||controller t1 0/0/0|pri-group timeslots 1-3 - 24 service mgcp|no shut||int serial 0/0/0:23|isdn bind-l3 ccm-manager|ccm-manager mgcp|ccm-manager redundant-host 1

8. How do do configure TEHO?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM
(config)#isdn switch-type primary-net5|(config)#network-clock-participate wic 0||(config)#Controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3 !!!Get the PRI up!!!|(config-controller)#no shut||(config)#int s0/0/0:15|(config-if)#isdn outgoin

9. How do you maintain 4-digit dialing to phones that are running in an SRST scenario (WAN outage)?

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10. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Sh ip rsvp reservation||sh sccp connections
In CUCM - configure CFUR to point to it's E164 number.
#interface vlan 130 (voice vlan)| #h323-gateway voip interface| #h323-gateway voip id BR2 ipaddr 10.1.6.1| #h323-gateway voip h323-id UK| #h323-gateway voip bind srcaddr 10.1.130.1

11. Maximum Wait Time for Desk Pickup?
(config)#ip domain-name <NAME>|(config)#isdn switch-type primary-ni|(config)#network-clock-participate wic 0||(config)#controller t1 0/0/0|(config-controller)#pri-group timeslots 1-3 - 24 service mgcp|(config-controller)#no shut||(config)#interface s
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
...
Transfer to external is blocked by default.|To ensure only transfer to internal is allowed - make sure only the following tx pattern is under telephony-service||#telephony service| #transfer-pattern ....

12. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
#int lo0|#h323-gateway voip bind srcaddr [IP]||#isdn switch-type primary-ni|#network-clock-particpate wic0||#controller t1 0/0/0|#pri-group timeslots 1-3||#int serial 0/0/0:23|#isdn outgoing display-ie|#isdn b-chan selection order [use opposite of wh
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

13. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
Matches any length dialed number and truncates it to 4 digits.
In the CUCM 7.0.1 Release Notes ... search for restore.
8kb/s
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

14. What's the best way to perform digit manipulation on a route group?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.
Configure it on the route group through the route list - then it will be local to the route list.

15. An MGCP gateway serving as an SRST router requires what?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Service Parameters --> Mobile Voice Access Number
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

16. 'If you're not getting a DHCP address from CUCM what then?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
#isdn switch-type primary-ni|#network-clock-participate wic 0|#controller t1 0/0/0|#pri-group timeslots 1-3 service mgcp||#ccm-manager mgcp ccm-manager redundant-host [IP]|#ccm-manager fallback-mgcp (for srst)|#ccm-manager moh||#mgcp|#mgcp call-agent
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Sh ccm-manager

17. How do you block calls under call-manager-fallback?
#after-hours block pattern
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Service Parameter --> Block OffNet To OffNet Transfer --> True
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

18. 'By Nov. 16 - 2010||I am happy confident and thankful that I am now a CCIE Voice Certified engineer! My technical knowledge of the Cisco UC portfolio is truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
...
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Interface f0/0|no ip address|no shut||interface f0/0.10|encap dot1q 10 native --> !!! DATA VLAN !!!|ip address 10.10.100.1 255.255.255.0|interface f0/0.20|encap dot1q 20 --> !!! VOICE VLAN !!!|ip address 10.10.200.1 255.255.255.0
#test voice translation rule 1 <input to test>

19. How do you setup AutoRegistration in CUCM?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Assign SIP Dial Rules

'Use before the ... so XXXX

20. What would force you to use telephony-service to configure SRST?

Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| #voice-class h323 1| #session target ipv4:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

21. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
It's best to strip digits at the voice port.
Via the voice hunt-group parallel command

22. How do you create a trunk on the switch side?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Master/Slave relationship. CUCM controls it.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Call-manager-fallback or telephony-service mode SRST

23. What are the basic ephone-dn and ephone commands?
Ephone-dn 1 <dual / octo>|number 3001|description 3214-3001 !!! PHONE BANNER !!!||ephone 1|mac-address 001b.d4c6.ca99|button 1:1|type 7961|max-calls-per-button 5|busy-trigger-per-button 3
Voice register dn 1| number 4002||voice register pool 1|id mac 0022.0022.0022|type 7961ge|number 1 dn 1|dtmf-relay rtp-nte|no vad
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

24. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Apply voice-class codec
Auto Call Pickup Enabled
Via the voice hunt-group parallel command
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

25. What do you need to do to activate the CME GUI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
8kb/s

26. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Ip domain-name ipexpert.com|network-clock-participate wic 0|isdn switch-type primary-ni||controller t1 0/0/0|pri-group timeslots 1-3 - 24 service mgcp|no shut||int serial 0/0/0:23|isdn bind-l3 ccm-manager|ccm-manager mgcp|ccm-manager redundant-host 1
Sh ccm-manager
Auto Call Pickup Enabled
The + character is not supported on a VOIP dial-peer.||So you'll need to add back on the POTS dial-peer before it gets to the PSTN via a voice translation-rule.

27. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
The Called/Calling Transformations are superceded.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

28. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
When configuring TEHO.
Assign a logout-profile to the ephone.
Ccm-manager music-on-hold

29. What terminology translates to SRST?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Ephone-dn 1 <dual / octo>|number 3001|description 3214-3001 !!! PHONE BANNER !!!||ephone 1|mac-address 001b.d4c6.ca99|button 1:1|type 7961|max-calls-per-button 5|busy-trigger-per-button 3
The Called/Calling Transformations are superceded.
Reroute when there is a WAN Outage.

30. How do you enable Extension Mobility for a device in CME?
Assign a logout-profile to the ephone.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
#test voice translation rule 1 <input to test>

31. On the RDP What is the CSS used for?
Mobile Voice Access
'Service Parameters --> Auto Answer Timer
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

32. How do you configure AAR?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Gatekeeper - zone local GK cisco.com 10.1.6.1 - zone local CUCM cisco.com invia GK outvia GK - zone local BR2 cisco.com invia GK outvia GK
8kb/s

33. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Show ccm-manager
In CUCM - configure CFUR to point to it's E164 number.
The Called/Calling Transformations are superceded.
(config)#service dhcp|(config)#no ip dhcp conflict logging|(config)#ip dhcp excluded-address <low IP> <hi IP>|(config)#ip dhcp-pool <name>|(dhcpconfig)#network <network name> </nn or mask>|(dhcpconfig)#domain-name <domain>|(dhcpconfig)#dns-server <IP

34. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
...
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Auto Call Pickup Enabled
SIP Route Pattern over a SIP Trunk.

35. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Assign SIP Dial Rules
Precede the # with a > ... so 9011*>#
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| #voice-class h323 1| #session target ipv4:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas

36. How do you use an ephone template?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
It matches a route pattern| Which points to a route list| Which point to a route group| Which contains a GW or Trunk|*Then it needs to match on an incoming VOIP diap-peer (incoming called -number .)
Apply it to the ephone.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

37. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Call forwarding between voip to voip (when CUBE is in play)
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

38. 'How do you inform a SIP phone of NTP information?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
sh ephone reg|and|debug voip dialpeer
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

39. On an MGCP GW - how could you see the primary and backup CUCM servers?
Show ccm-manager

Automatically configures the MGCP GW for you.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

40. How do you configure DHCP in IOS?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
(config)#service dhcp|(config)#no ip dhcp conflict logging|(config)#ip dhcp excluded-address <low IP> <hi IP>|(config)#ip dhcp-pool <name>|(dhcpconfig)#network <network name> </nn or mask>|(dhcpconfig)#domain-name <domain>|(dhcpconfig)#dns-server <IP
Interface f0/0|no ip address|no shut||interface f0/0.10|encap dot1q 10 native --> !!! DATA VLAN !!!|ip address 10.10.100.1 255.255.255.0|interface f0/0.20|encap dot1q 20 --> !!! VOICE VLAN !!!|ip address 10.10.200.1 255.255.255.0
Single Number Reach (Mobile Connect)

41. In Gatekeeper CAC how do you restrict a specific endpoint?
Call-manager-fallback or telephony-service mode SRST
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
1 ... this is not optional!
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

42. By Nov. 16 - 2010||I am happy confident and thankful that I am now a CCIE Voice Certified engineer! My technical knowledge of the Cisco UC portfolio is truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
...
'Use before the ... so XXXX
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

43. How do you disable KPML?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Assign SIP Dial Rules
The name configuration field in ephone-dn and voice register dn
8kb/s

44. What kind of relationship does an MGCP gateway have with CUCM?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
24kb/s
Master/Slave relationship. CUCM controls it.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

45. What are two caveats to using the ccm-manager config server</ip> command?

#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
SIP Route Pattern over a SIP Trunk.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

46. How do you support multiple codecs on a dialpeer?
Apply voice-class codec
Automatically configures the MGCP GW for you.
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.

47. When are digits stripped in a gateway?
1 ... this is not optional!
When they are explicitly matched in a destination-pattern in a dial-peer.

IP Voice Media Streaming App

48. What does an H323 GW require that MGCP GWs do not?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Dial-peers
voice register pool|and|voice register dn
...

49. How do you change modes in voice register global?
To notify SIP Phones of NTP
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

50. What is CSIM?
Mobile Connect
Sh ccm-manager
Call Simulator. You can use to validate path from router to the PSTN.
Apply voice-class codec

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CCIE Voice Test

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