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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 set the Call Park Reversion Timer?
CUCM Service Parameters --> Call Park Reversion Timer
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 ....
Sh ccm-manager
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

2. What is the Enable Enterprise Feature Access Service Parameter used for?
(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
CUCM OS Administration Settings --> NTP Servers
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
To enable two-stage dialing.

3. How do you use an ephone template?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
#voice service voip| #no supplementary-service h225-notify cid-update
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Apply it to the ephone.

4. Is the order of the MRGs in an MRGL significant?
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
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
On CUCM -- UPTSAL||Create Your Users|Phone - set owner id|Create SIP Trunk|SIP Trunk Security Profile||Application Server|Licensing||||On CUPS||Work Left to right

5. What CUCM services should you activate?
#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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

6. How do you block an external call from being transferred back out to the pstn by an internal user?
Show ccm-manager
Service Parameter --> Block OffNet To OffNet Transfer --> True
(config)#sh cdp neigh detail
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

7. How do you configure a SIP Trunk? (router side)
(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
#test voice translation rule 1 <input to test>
IP Voice Media Streaming App
The name configuration field in ephone-dn and voice register dn

8. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
voice register pool|and|voice register dn
Device Pool Locations
CUCM OS Administration Settings --> NTP Servers
...

9. How much bandwidth does a G.729 call including layer 3 require?
24kb/s
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

Bottom up - to prevent glare.

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

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11. What commands are needed to configure the voice register pool in CME?
Reroute when here is WAN congestion.
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.
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
Sh ccm-manager

12. What are the basic ephone-dn and ephone commands?
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 .)
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
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

13. SNR is also known as?
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.
Mobile Connect
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

14. When a CUCM device dials a number - what happens?
Service Parameters --> Mobile Voice Access Number
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
Allows you to transfer by only pressing the Transfer button once.
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 .)

15. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Bottom up - to prevent glare.
1 ... this is not optional!

16. 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?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
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.

17. What is call-forward pattern used for?
(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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Call forwarding between voip to voip (when CUBE is in play)
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

18. What are the commands to configure a MGCP Gateway? (router)
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
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
(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
Service Parameters --> Mobile Voice Access Number

19. In Gatekeeper CAC how do you restrict a specific endpoint?
CUCM Service Parameters --> Call Park Reversion Timer
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
Phone number followed by domain name.|i.e. 3006@ipxcme.com

20. When do you use translate called? Translate calling?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
#after-hours block pattern
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

21. How would you verify that DHCP is working in IOS?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
#test voice translation rule 1 <input to test>
SERVICE PARAMETER> Automated Alternate Routing Enable > True
(config)#sh cdp neigh detail

22. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
#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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#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
#voice service voip| #no supplementary-service h225-notify cid-update

23. How do you prioritize route groups?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
24kb/s
Debug ephone moh
Put them in a route list.

24. How do you allow the Calling Name to be sent to the PSTN on a router?
The Called/Calling Transformations are superceded.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Reroute when here is WAN congestion.
Debug ephone moh

25. Describe the relationship between route patterns and end devices.
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.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
(config)#voice register dialplan
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

26. What terminology translates to AAR?
Put them in a route list.
TRUE
SIP Dial Rules
Reroute when here is WAN congestion.

27. How do you change modes in voice register global?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
voice translation-profile|and|voice translation-rule
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

28. How do you prevent H323 caller-id updates to CUCM
CUCM Service Parameters --> Call Park Reversion Timer
#voice service voip| #no supplementary-service h225-notify cid-update
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

29. What does Display-IE do?
The name configuration field in ephone-dn and voice register dn
Sends the Calling Name.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Precede the # with a > ... so 9011*>#

30. How do you prevent toll fraud on CME?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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 ....

31. On an MGCP GW - how could you see the primary and backup CUCM servers?
Automatically configures the MGCP GW for you.
Call Simulator. You can use to validate path from router to the PSTN.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Show ccm-manager

32. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
voice translation-profile|and|voice translation-rule
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.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

33. When do you do digit manipulation at the route pattern as opposed to the route list?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
To enable two-stage dialing.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
When multiple sites use the same route pattern - do your digit manipulation on a route list.

34. How do you prevent toll fraud on CUCM?
...
Reroute when here is WAN congestion.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
voice register pool|and|voice register dn

35. What are the commands to configure SRST in fallback?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
At the CLI: utils ntp status

36. What are the commands to configure SIP phones in CME?
On CUCM it's identical to adding an H323 GW.
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
#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
Show ccm-manager

37. What are the base telephony-service commands for CME?
24kb/s
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

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

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39. 'If you want to make changes to any softkeys where do you do it?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Put them in a route list.

40. How do you see the details of calls coming in and out of the PRI?
TRUE
Debug isdn q931
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
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

41. On the RDP What is the Rerouting CSS used for?

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 .)
Sends the Calling Name.
Single Number Reach (Mobile Connect)

42. How do you get around relying on DNS for your CUCMs?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
voice register pool|and|voice register dn
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
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

43. What is SIP URI?
1 ... this is not optional!
Service Parameters --> Mobile Voice Access Number
Sh ccm-manager
Phone number followed by domain name.|i.e. 3006@ipxcme.com

44. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
(config)#voice register dialplan
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Re-enter the mgcp bind control and mgcp bind media commands.

45. 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
#voice service voip| #no supplementary-service h225-notify cid-update
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
...
Auto Call Pickup Enabled

46. How would you set the the timer for Auto Answer?

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47. 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?
IP Voice Media Streaming App
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
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).

48. How do you configure CUCM redundancy on an H323 gateway?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
SIP Dial Rules
#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
Call-manager-fallback or telephony-service mode SRST

49. How do you configure DHCP in IOS?
(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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
To notify SIP Phones of NTP
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

50. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Ccm-manager music-on-hold
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Bottom up - to prevent glare.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP