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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. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Dial-peers
Put them in a route list.
Call forwarding between voip to voip (when CUBE is in play)
Service Parameters --> Mobile Voice Access Number

2. What does the Transfer On-hook Enabled Service Parameter do?
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.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Precede the # with a > ... so 9011*>#

3. 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
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
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

4. How do you configure SRST?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Call-manager-fallback or telephony-service mode SRST
8kb/s
Sends the Calling Name.

5. How do you prevent toll fraud on CME?
CUCM Service Parameters --> Call Park Reversion Timer

To enable two-stage dialing.
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 ....

6. With the gw-priority command - does higher or lower priority take precedence?
Higher
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Dtmf-relay h245-alpha

7. Describe the relationship between route patterns and end devices.
Matches any length dialed number and truncates it to 4 digits.
SIP Route Pattern over a SIP Trunk.
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.
#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

8. What are the commands to configure NTP in IOS?
Assign SIP Dial Rules
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
It's best to strip digits at the voice port.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

9. When using drop-through-option What is the max number of huntgroups?
CUCM Service Parameters --> Call Park Reversion Timer
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
1 ... this is not optional!
Sends the Calling Name.

10. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Master/Slave relationship. CUCM controls it.

Sh ccm-manager

11. How do you change modes in voice register global?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
voice translation-profile|and|voice translation-rule
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

12. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
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.
Reroute when there is a WAN Outage.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

13. How do you test a Voice Translation Rule?
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
voice translation-profile|and|voice translation-rule
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.
#test voice translation rule 1 <input to test>

14. 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
IP Voice Media Streaming App
Sh ip rsvp reservation||sh sccp connections
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

15. What are the base telephony-service commands for CME?
Max-dn|max-ephone|ip source-address
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Auto Call Pickup Enabled
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

16. What is a best practice for digit manipulation - in regards to H323 GWs?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Sh ip rsvp reservation||sh sccp connections
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

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

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18. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
...
When they are explicitly matched in a destination-pattern in a dial-peer.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

19. How do you support multiple codecs on a dialpeer?
Apply voice-class codec
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
#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
Via the voice hunt-group parallel command

20. Maximum Wait Time for Desk Pickup?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Sh ccm-manager
Dial-peers
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

21. How do you enable Extension Mobility for a device in CME?
Assign a logout-profile to the ephone.
Matches any length dialed number and truncates it to 4 digits.
'Service Parameters --> Auto Answer Timer
Reroute when here is WAN congestion.

22. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
...
Top Down means that channel 1 will be the first channel used to place outgoing calls.
TRUE

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

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24. 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
8kb/s
...
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
Dtmf-relay h245-alpha

25. 'How do you inform a SIP phone of NTP information?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Bandwidth
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Assign SIP Dial Rules

26. How do you use an ephone template?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Apply it to the ephone.

27. How do you use the # as a string terminator within a SIP Dial Rule?
To enable two-stage dialing.
#voice service voip| #no supplementary-service h225-notify cid-update
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 ipv4:10.1.5.3 (sub)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #pre

28. What does Display-IE do?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Sends the Calling Name.

29. How much bandwidth does a G.729 call including layer 3 require?
24kb/s
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Matches any length dialed number and truncates it to 4 digits.
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

30. How do you allow the Calling Name to be sent to the PSTN on a router?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Single Number Reach (Mobile Connect)

31. 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
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
#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
...

32. What is the Service Parameter to allow the phone that is picking ip to auto answer?
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.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
(config)#voice register dialplan
Auto Call Pickup Enabled

33. What are two caveats to using the ccm-manager config server</ip> command?
Precede the # with a > ... so 9011*>#
Debug isdn q931

SIP Dial Rules

34. When are digits stripped in a gateway?
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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
When they are explicitly matched in a destination-pattern in a dial-peer.
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 .)

35. How do you verify that NTP is working on the CUCM server?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
(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
At the CLI: utils ntp status
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

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

Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
In the CUCM 7.0.1 Release Notes ... search for restore.
1 ... this is not optional!

37. 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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
TRUE

38. How would you enable security on a GK?
Service Parameters --> Mobile Voice Access Number
CUCM Service Parameters --> Call Park Reversion 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)
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

39. Does CUCM support RSVP natively?
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
...
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

40. How do you create a trunk on the router side?
Matches any length dialed number and truncates it to 4 digits.
Auto Call Pickup Enabled
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
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)

41. 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?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Sends the Calling Name.

42. What's the best way to perform digit manipulation on a route group?
Configure it on the route group through the route list - then it will be local to the route list.
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
...
#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

43. What are the commands to create the L3 routing interface for VLANS (SVI)?
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
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
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
The Called/Calling Transformations are superceded.

44. What is the Enable Enterprise Feature Access Service Parameter used for?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
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
To enable two-stage dialing.

45. An MGCP gateway serving as an SRST router requires what?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
(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
The name configuration field in ephone-dn and voice register dn
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

46. Is the order of the MRGs in an MRGL significant?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Bandwidth
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

47. When do you do digit manipulation at the route pattern as opposed to the route list?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
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 .)
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
CUCM Service Parameters --> Call Park Reversion Timer

48. What terminology translates to AAR?
Reroute when here is WAN congestion.
(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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
When multiple sites use the same route pattern - do your digit manipulation on a route list.

49. How do you place SCCP and SIP phones into a single huntgroup?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Via the voice hunt-group parallel command
When they are explicitly matched in a destination-pattern in a dial-peer.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

50. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
(config)#voice register dialplan
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Ccm-manager music-on-hold
When they are explicitly matched in a destination-pattern in a dial-peer.