Test your basic knowledge |

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. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
Assign a logout-profile to the ephone.

Apply it to the ephone.

2. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
SIP Dial Rules
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

3. How do you enable AAR system wide?
At the CLI: utils ntp status
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
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

4. What are the commands to configure a T1/E1 PRI?
(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
...
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

5. What are the 3 mandatory commands within call-manager-fallback?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Max-dn|max-ephone|ip source-address
Debug ephone moh
'Service Parameters --> Auto Answer Timer

6. How do you change modes in voice register global?
24kb/s
Assign a logout-profile to the ephone.
The Called/Calling Transformations are superceded.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

7. How do you set up redundancy on outbound dial-peers on an H323 gateway?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Ccm-manager music-on-hold
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

8. What are two caveats to using the ccm-manager config server</ip> command?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Device Pool Locations
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

9. What is the Service Parameter to allow the phone that is picking ip to auto answer?
voice translation-profile|and|voice translation-rule
(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
Auto Call Pickup Enabled
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

10. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Apply it to the ephone.

11. Privacy is enabled system-wide in CUCM by default. (T or F)
Higher
(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
TRUE
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

12. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
Re-enter the mgcp bind control and mgcp bind media commands.
IP Voice Media Streaming App
Call-manager-fallback or telephony-service mode SRST

13. Calls coming from CUCM to PSTN need what?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Outbound dial-peers
It's best to strip digits at the voice port.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

14. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Put them in a route list.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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

15. What's the best way to do digit manipulation on an IOS gateway?
voice translation-profile|and|voice translation-rule
Via the voice hunt-group parallel command
On CUCM it's identical to adding an H323 GW.
Mobile Connect

16. How do you configure DHCP in IOS?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
CUCM Service Parameters --> Call Park Reversion Timer
(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
'Use before the ... so XXXX

17. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a voice class h323and set the h225 timeout value so it will hunt between the two.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

18. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Sh ip rsvp reservation||sh sccp connections
The Called/Calling Transformations are superceded.
It's best to strip digits at the voice port.

19. What does Display-IE do?
Via the voice hunt-group parallel command
To notify SIP Phones of NTP
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Sends the Calling Name.

20. On an MGCP GW - how could you see the primary and backup CUCM servers?
Re-enter the mgcp bind control and mgcp bind media commands.
The Called/Calling Transformations are superceded.
Show ccm-manager
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

21. When using drop-through-option What is the max number of huntgroups?
(config)#voice register dialplan
1 ... this is not optional!
(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
On CUCM it's identical to adding an H323 GW.

22. How do you prevent toll fraud on CUCM?
In the CUCM 7.0.1 Release Notes ... search for restore.
#after-hours block pattern
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

23. How do you configure SRST?
TRUE
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.
(config)#isdn switch-type primary-net5 (or whatever's provided)|(config)#network-clock-participate wic 0||(config)#controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3|(config-controller)#no shut||(config)#int s0/0/0:15 (this is created aft
Call-manager-fallback or telephony-service mode SRST

24. How do you allow the Calling Name to be sent to the PSTN on a router?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
'Service Parameters --> Auto Answer Timer
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

25. How would you enable security on a GK?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
(config)#voice register dialplan
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

26. What are the basic SCCP Commands fro telephony-service in CUCME?
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 (or whatever's provided)|(config)#network-clock-participate wic 0||(config)#controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3|(config-controller)#no shut||(config)#int s0/0/0:15 (this is created aft
Call Simulator. You can use to validate path from router to the PSTN.
At the CLI: utils ntp status

27. What are the commands to manually configure an MGCP gateway?
#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
Ccm-manager music-on-hold
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

28. What is call-forward pattern used for?
Master/Slave relationship. CUCM controls it.
Call-manager-fallback or telephony-service mode SRST
Call forwarding between voip to voip (when CUBE is in play)
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| # voice-class h323 1| #session target ipv4:10.1.5.3 (sub)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #pre

29. What is the Enable Enterprise Feature Access Service Parameter used for?
To enable two-stage dialing.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

30. On an H323 GW - how do you adjust the timers for redundancy hunting?
#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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
1 ... this is not optional!
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

31. In Gatekeeper CAC how do you restrict a specific endpoint?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Show ccm-manager

32. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?

Call forwarding between voip to voip (when CUBE is in play)
In the CUCM 7.0.1 Release Notes ... search for restore.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

33. How do you configure CUCM redundancy on an H323 gateway?
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
#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
Mobile Connect
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

34. How do you prioritize route groups?
To enable two-stage dialing.
Device Pool Locations
Put them in a route list.
Allows you to transfer by only pressing the Transfer button once.

35. How do you get around relying on DNS for your CUCMs?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
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
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

36. How do you configure class of service (CoS) in CUCM? CME?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
It's best to strip digits at the voice port.
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 .)
Dial-peers

37. How do you block an external call from being transferred back out to the pstn by an internal user?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Assign SIP Dial Rules
Service Parameter --> Block OffNet To OffNet Transfer --> True

38. 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
...
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
Call forwarding between voip to voip (when CUBE is in play)
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

39. When are digits stripped in a gateway?
Assign a logout-profile to the ephone.
When they are explicitly matched in a destination-pattern in a dial-peer.
Device Pool Locations
...

40. How do you ensure that G.711 only is used?
Max-dn|max-ephone|ip source-address
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

41. Name 2 commands to verify RSVP functionality.
Sh ip rsvp reservation||sh sccp connections

#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
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

42. 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.
On CUCM it's identical to adding an H323 GW.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Debug isdn q931

43. What are the commands to configure NTP in IOS?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Bottom up - to prevent glare.

'Use before the ... so XXXX

44. How do you verify where MOH is being served up from?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

45. If you have an H323 Gateway at a siet where the phones are controlled by CUCM - what do you need from a dial-peer perspective?
You need pots dial-peers for incoming calls and you need a voip dial-peer pointing to the CUCM so the H323 GW and connect the call to those phones.
'Service Parameters --> Auto Answer Timer
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
#after-hours block pattern

46. How do you setup AutoRegistration in CUCM?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
In CUCM - configure CFUR to point to it's E164 number.

47. How do you see multicast packets being sent?
Service Parameters --> Mobile Voice Access Number
Allows you to transfer by only pressing the Transfer button once.
Debug ephone moh
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

48. What's the difference between AAR and SRST?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

49. How do you support multiple codecs on a dialpeer?
(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
Apply voice-class codec
...
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

50. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
To notify SIP Phones of NTP
Bottom up - to prevent glare.