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. How do you allow the Calling Name to be sent to the PSTN on a router?
Outbound dial-peers
Auto Call Pickup Enabled
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

2. How is NTP sych setup in CUCM?
24kb/s
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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
CUCM OS Administration Settings --> NTP Servers

3. Maximum Wait Time for Desk Pickup?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
voice translation-profile|and|voice translation-rule
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
When configuring TEHO.

4. What are the commands to configure SIP phones in CME?
Master/Slave relationship. CUCM controls it.
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
...
To enable two-stage dialing.

5. On an MGCP GW - how could you see the primary and backup CUCM servers?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Show ccm-manager
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

6. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Service Parameters --> Mobile Voice Access Number
Re-enter the mgcp bind control and mgcp bind media commands.
Dtmf-relay h245-alpha
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

7. What is a best practice for digit manipulation - in regards to H323 GWs?
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.
SIP Route Pattern over a SIP Trunk.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Sends the Calling Name.

8. What is Phone NTP Reference used for?
To notify SIP Phones of NTP
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Automatically configures the MGCP GW for you.
#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

9. Calls coming from CUCM to PSTN need what?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Outbound dial-peers
Sh ccm-manager
Debug isdn q931

10. What would force you to use telephony-service to configure SRST?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

Dial-peers
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

11. 'How do you inform a SIP phone of NTP information?
The Called/Calling Transformations are superceded.
...
It's best to strip digits at the voice port.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

12. What kind of relationship does an MGCP gateway have with CUCM?
In CUCM - configure CFUR to point to it's E164 number.
Master/Slave relationship. CUCM controls it.

13. How do you configure phone ports on a 3750?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Reroute when there is a WAN Outage.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

14. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
(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
Service Parameters --> Mobile Voice Access Number
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

15. What are the basic ephone-dn and ephone commands?
Assign SIP Dial Rules
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
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.
Show ccm-manager

16. How do you test a Voice Translation Rule?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
#test voice translation rule 1 <input to test>
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
#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

17. How do you configure CUBE?

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18. What are the commands to create vlans on an ESW?
Master/Slave relationship. CUCM controls it.
Single Number Reach (Mobile Connect)
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
SERVICE PARAMETER> Automated Alternate Routing Enable > True

19. An MGCP gateway serving as an SRST router requires what?
Reroute when there is a WAN Outage.
Higher
Put them in a route list.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

20. 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
...
Mobile Voice Access
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 .)
Ccm-manager music-on-hold

21. What does rule 1 /^.*(....$)/ /1/ do?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Matches any length dialed number and truncates it to 4 digits.
Device Pool Locations
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

22. How do you support multiple codecs on a dialpeer?
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
To notify SIP Phones of NTP
TRUE
Apply voice-class codec

23. What CM Service needs to be start in Serviceability for MOH to work?
24kb/s
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
IP Voice Media Streaming App

24. How do you enable AAR system wide?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Assign a logout-profile to the ephone.
Mobile Connect

25. Describe how you configure SIP URI functionality.
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)
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)#voice register dialplan

26. Where can you assign the AAR Group?
1 ... this is not optional!
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

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

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28. What does Display-IE do?
#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
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
Sends the Calling Name.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

29. How would you enable security on a GK?
Higher
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

30. How do you change modes in voice register global?
voice register pool|and|voice register dn
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Apply voice-class codec
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

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

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32. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Debug ephone moh
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

33. What is the Enable Enterprise Feature Access Service Parameter used for?
SIP Dial Rules
#test voice translation rule 1 <input to test>
To enable two-stage dialing.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

34. What CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
It's best to strip digits at the voice port.

35. What are the commands to manually configure an MGCP gateway?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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.
#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

36. What does KPML do?
#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
When multiple sites use the same route pattern - do your digit manipulation on a route list.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

37. Privacy is enabled system-wide in CUCM by default. (T or F)
TRUE
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Put them in a route list.

38. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
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 ....
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Put them in a route list.
voice register pool|and|voice register dn

39. What dtmf-relay type do you use for an H323 GW?
(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
Dtmf-relay h245-alpha
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
...

40. Two useful troubleshooting commands for CUCME?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
sh ephone reg|and|debug voip dialpeer
In the CUCM 7.0.1 Release Notes ... search for restore.
voice register pool|and|voice register dn

41. How do you ensure that G.711 only is used?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Service Parameter --> Block OffNet To OffNet Transfer --> True
Single Number Reach (Mobile Connect)

42. How do you enable AAR?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
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
...

43. What is the bit rate for a G.729 call excluding layer 2?
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
Service Parameter --> Block OffNet To OffNet Transfer --> True
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
8kb/s

44. What should you configure before entering auto qos?
Sh ip rsvp reservation||sh sccp connections
Bandwidth
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Dtmf-relay h245-alpha

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.
Show ccm-manager
IP Voice Media Streaming App
(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

46. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
The Called/Calling Transformations are superceded.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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)

47. Name 4 useful show commands for active calls.
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
Allows you to transfer by only pressing the Transfer button once.
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.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

48. What is CSIM?
Call Simulator. You can use to validate path from router to the PSTN.
Sends the Calling Name.
#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
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

49. In Gatekeeper CAC how do you restrict a specific endpoint?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
'Use before the ... so XXXX
Int vlan 130|ip address 10.10.101.1 255.255.255.0|int vlan 240|ip address 10.10.201.1 255.255.255.0

50. How would you verify that DHCP is working in IOS?
To notify SIP Phones of NTP
TRUE
(config)#sh cdp neigh detail
#test voice translation rule 1 <input to test>