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CCIE Voice Test

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. How do you configure a gateway to register with gatekeeper?
(config)#sh cdp neigh detail
#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
Debug isdn q931
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

2. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
#after-hours block pattern

Bottom up - to prevent glare.

3. '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
CUCM Service Parameters --> Call Park Reversion Timer
IP Voice Media Streaming App

...

4. What is SIP URI?
(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|(config-controller)#no shut||(config)#voice service voip|(conf-voi-serv)#sip|(conf-serv-sip)#bind
Bandwidth
Ccm-manager music-on-hold
Phone number followed by domain name.|i.e. 3006@ipxcme.com

5. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
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
Auto Call Pickup Enabled

Sh ccm-manager

6. If you're using Called/Calling Party Transformations at the Route Pattern and tranformations at the route list ... What does the RP affect and What does the RL affect?
Higher
Auto Call Pickup Enabled
Sh ip rsvp reservation||sh sccp connections
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

7. What terminology translates to AAR?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Reroute when here is WAN congestion.
Debug ephone moh
Sends the Calling Name.

8. What is CSIM?
Max-dn|max-ephone|ip source-address
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Service Parameter --> Block OffNet To OffNet Transfer --> True
Call Simulator. You can use to validate path from router to the PSTN.

9. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
(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|(config-controller)#no shut||(config)#voice service voip|(conf-voi-serv)#sip|(conf-serv-sip)#bind
Call-manager-fallback or telephony-service mode SRST

10. What is the full E164 format?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
The Called/Calling Transformations are superceded.
Bottom up - to prevent glare.
Reroute when here is WAN congestion.

11. How do you enable AAR?
Call Simulator. You can use to validate path from router to the PSTN.

SERVICE PARAMETER> Automated Alternate Routing Enable > True
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

12. How do you configure class of service (CoS) in CUCM? CME?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Matches any length dialed number and truncates it to 4 digits.

13. What are the commands to configure SIP phones in CME?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
The name configuration field in ephone-dn and voice register dn

Voice register global|mode cme|source-address <IP>|max-dn <NUM>|max-pool <NUM>|tftp-path flash:/<PATH>|create profile||NOTE: You have to do a create profile every time you change the voice register pool

14. What does the Transfer On-hook Enabled Service Parameter do?
Single Number Reach (Mobile Connect)
Allows you to transfer by only pressing the Transfer button once.
Put them in a route list.
IP Voice Media Streaming App

15. When do you use translate called? Translate calling?
sh ephone reg|and|debug voip dialpeer
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

16. Where is it best to manipulate digits for inbound calls?

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17. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Ccm-manager music-on-hold
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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.

18. How do you disable KPML?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Assign SIP Dial Rules

19. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
#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
The Called/Calling Transformations are superceded.

20. What is a best practice for digit manipulation - in regards to H323 GWs?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
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

21. 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.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Mobile Connect
Assign SIP Dial Rules

22. Calls coming from CUCM to PSTN need what?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Outbound dial-peers
The Called/Calling Transformations are superceded.

23. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
IP Voice Media Streaming App
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
On CUCM it's identical to adding an H323 GW.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

24. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
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
SIP Dial Rules
Matches any length dialed number and truncates it to 4 digits.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

25. Name 4 useful show commands for active calls.
Outbound dial-peers
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

26. Where can you assign the AAR Group?
#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
Reroute when here is WAN congestion.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
On CUCM it's identical to adding an H323 GW.

27. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
sh ephone reg|and|debug voip dialpeer
SIP Route Pattern over a SIP Trunk.
voice register pool|and|voice register dn
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

28. What is the Enable Enterprise Feature Access Service Parameter used for?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
...
To enable two-stage dialing.

29. What are the commands to configure NTP in IOS?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Reroute when there is a WAN Outage.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Max-dn|max-ephone|ip source-address

30. What's the best way to perform digit manipulation on a route 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 voice-class codec
Configure it on the route group through the route list - then it will be local to the route list.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

31. Where do you use VIA zone?
Call forwarding between voip to voip (when CUBE is in play)
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
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
Higher

32. How do you configure CUBE?

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33. How do you set the Call Park Reversion Timer?
Outbound dial-peers
Via the voice hunt-group parallel command
CUCM Service Parameters --> Call Park Reversion Timer
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

34. In CME Where is the Calling Name derived from?
Outbound dial-peers
Service Parameters --> Mobile Voice Access Number
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
The name configuration field in ephone-dn and voice register dn

35. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
To enable two-stage dialing.
Apply voice-class codec
voice register pool|and|voice register dn
#voice service voip| #no supplementary-service h225-notify cid-update

36. How do you test a Voice Translation Rule?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
(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
Call Simulator. You can use to validate path from router to the PSTN.
#test voice translation rule 1 <input to test>

37. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
The Called/Calling Transformations are superceded.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

38. What commands are needed to configure the voice register pool in CME?
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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Device Pool Locations
...

39. In Gatekeeper CAC how do you restrict a specific endpoint?
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
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)
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

40. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Voice register global|mode cme|source-address <IP>|max-dn <NUM>|max-pool <NUM>|tftp-path flash:/<PATH>|create profile||NOTE: You have to do a create profile every time you change the voice register pool
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

41. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Sh ccm-manager
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
...

42. When setting up SIP URI where do you configure the CUCM's domain name?'
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Show ccm-manager
When multiple sites use the same route pattern - do your digit manipulation on a route list.
(config)#voice register dialplan

43. How do you allow the Calling Name to be sent to the PSTN on a router?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
sh ephone reg|and|debug voip dialpeer
Debug isdn q931

44. 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!!!
The name configuration field in ephone-dn and voice register dn
...
Apply voice-class codec

45. How do you setup AutoRegistration in CUCM?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

46. What are the commands to create vlans on an ESW?
Matches any length dialed number and truncates it to 4 digits.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
SERVICE PARAMETER > Device Name of GK0controlled Trunk That Will Use Port 1720 > US_Trunk (or whatever you're using)||> Host Name/IP of GK That Will Use RAS UDP Port 1719 > (IP of GK) ||BE SURE TO RESTART THE TRUNK in CUCM and possibly the CUCM Servi
8kb/s

47. What does KPML do?

Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
CUCM Service Parameters --> Call Park Reversion Timer
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

48. How would you verify that DHCP is working in IOS?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
(config)#sh cdp neigh detail
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)
SIP Dial Rules

49. Which takes precedence Device Locations or Device Pool Locations?
'Service Parameters --> Auto Answer Timer
Device Pool Locations
To notify SIP Phones of NTP
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

50. What does rule 1 /^.*(....$)/ /1/ do?
Matches any length dialed number and truncates it to 4 digits.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Reroute when here is WAN congestion.