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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. 'If you want to make changes to any softkeys where do you do it?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
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 .)

2. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Device Pool Locations
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
When configuring TEHO.
The Called/Calling Transformations are superceded.

3. What is call-forward pattern used for?
Call forwarding between voip to voip (when CUBE is in play)

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 translation-profile|and|voice translation-rule

4. How do you disable KPML?
Assign SIP Dial Rules
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.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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

5. What are the commands to configure NTP in IOS?
Debug ephone moh
Single Number Reach (Mobile Connect)
(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

6. What must you do for a BACD script to work on a CME router?
#test voice translation rule 1 <input to test>
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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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

7. How do you set up redundancy on outbound dial-peers on an H323 gateway?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Ccm-manager music-on-hold
Reroute when here is WAN congestion.

8. How do you ensure that G.711 only is used?
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.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
At the CLI: utils ntp status

9. How do you prevent H323 caller-id updates to CUCM
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
IP Voice Media Streaming App
#voice service voip| #no supplementary-service h225-notify cid-update
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

10. What are the basic ephone-dn and ephone commands?
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
Service Parameter --> Block OffNet To OffNet Transfer --> 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.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

11. What would force you to use telephony-service to configure SRST?
To enable two-stage dialing.
Show ccm-manager
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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

12. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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
TRUE

13. What does Display-IE do?
Sends the Calling Name.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Ccm-manager music-on-hold

14. How do you configure CUCM redundancy on an H323 gateway?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
#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
Higher

15. What are the commands to configure a SIP phone in CUCME?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Voice register dn 1| number 4002||voice register pool 1|id mac 0022.0022.0022|type 7961ge|number 1 dn 1|dtmf-relay rtp-nte|no vad
To notify SIP Phones of NTP
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

16. When can you not use a Standard Local Route Group?
Automatically configures the MGCP GW for you.
When they are explicitly matched in a destination-pattern in a dial-peer.
When configuring TEHO.
Master/Slave relationship. CUCM controls it.

17. What commands are needed to configure the voice register pool in CME?
Reroute when there is a WAN Outage.
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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

18. How do you allow the Calling Name to be sent to the PSTN on a router?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Assign a logout-profile to the ephone.

19. How do you set the Call Park Reversion Timer?
TRUE
CUCM Service Parameters --> Call Park Reversion Timer
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

20. What is the bit rate for a G.729 call excluding layer 2?
Debug isdn q931
8kb/s
Bottom up - to prevent glare.
SERVICE PARAMETER> Automated Alternate Routing Enable > True

21. How do you prioritize route groups?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Put them in a route list.
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.

22. What is the full E164 format?
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)
(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
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
1 ... this is not optional!

23. What are the commands to configure SRST in fallback?
In CUCM - configure CFUR to point to it's E164 number.
Outbound dial-peers
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Max-dn|max-ephone|ip source-address

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

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25. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Bottom up - to prevent glare.
When configuring TEHO.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
#voice service voip| #no supplementary-service h225-notify cid-update

26. What are the commands to create the L3 routing interface for VLANS (SVI)?
Show ccm-manager
Ccm-manager music-on-hold
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

27. What terminology translates to AAR?
In CUCM - configure CFUR to point to it's E164 number.
Reroute when here is WAN congestion.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
(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

28. How do do configure TEHO?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Service Parameters --> Mobile Voice Access Number
When they are explicitly matched in a destination-pattern in a dial-peer.
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

29. When using drop-through-option What is the max number of huntgroups?
Call-manager-fallback or telephony-service mode SRST
IP Voice Media Streaming App
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
1 ... this is not optional!

30. Which takes precedence Device Locations or Device Pool Locations?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Device Pool Locations
#test voice translation rule 1 <input to test>
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.

31. What are the commands to configure a MGCP Gateway? (router)
Service Parameters --> Mobile Voice Access Number
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
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Automatically configures the MGCP GW for you.

32. 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.
(config)#sh cdp neigh detail
...
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

33. With the gw-priority command - does higher or lower priority take precedence?
Higher
1 ... this is not optional!
On CUCM it's identical to adding an H323 GW.
Allows you to transfer by only pressing the Transfer button once.

34. What are the basic SCCP Commands fro telephony-service in CUCME?
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.
CUCM OS Administration Settings --> NTP Servers
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
When they are explicitly matched in a destination-pattern in a dial-peer.

35. What's the best way to do digit manipulation on an IOS gateway?
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)
voice translation-profile|and|voice translation-rule
CUCM OS Administration Settings --> NTP Servers
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

36. How do you prevent toll fraud on CUCM?
Precede the # with a > ... so 9011*>#
Max-dn|max-ephone|ip source-address
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

37. What kind of relationship does an MGCP gateway have with CUCM?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Master/Slave relationship. CUCM controls it.
#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
Ccm-manager music-on-hold

38. In a SIP Dial Rule how do you represent a dialed * instead of it being used as a wildcard?

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39. What are the commands to set up the PRI?

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40. Two useful troubleshooting commands for CUCME?
Re-enter the mgcp bind control and mgcp bind media commands.
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
SIP Dial Rules
sh ephone reg|and|debug voip dialpeer

41. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Apply voice-class codec
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
Auto Call Pickup Enabled
To notify SIP Phones of NTP

42. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
voice register pool|and|voice register dn
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Higher
In the CUCM 7.0.1 Release Notes ... search for restore.

43. What CM Service needs to be start in Serviceability for MOH to work?
Voice register dn 1| number 4002||voice register pool 1|id mac 0022.0022.0022|type 7961ge|number 1 dn 1|dtmf-relay rtp-nte|no vad
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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
IP Voice Media Streaming App

44. Calls coming from CUCM to PSTN need what?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Ccm-manager music-on-hold
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
Outbound dial-peers

45. How do you block an external call from being transferred back out to the pstn by an internal user?
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
Call Simulator. You can use to validate path from router to the PSTN.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

46. How do you configure AAR?
Show ccm-manager
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
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 ....
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

47. Aside from the Media Resources --> Mobile Voice Access where else do you need to specify the the Mobile Voice Access DN?
Service Parameters --> Mobile Voice Access Number
Debug isdn q931
Allows you to transfer by only pressing the Transfer button once.
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

48. If you can't use a tech-prefix or default tech-prefix how do you get around the fact that CUCM does not register it's endpoint to GK?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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)
'Use before the ... so XXXX
CUCM Service Parameters --> Call Park Reversion Timer

49. How do you test a Voice Translation Rule?
#test voice translation rule 1 <input to test>
It's best to strip digits at the voice port.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

50. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
sh ephone reg|and|debug voip dialpeer
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
#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
Allows you to transfer by only pressing the Transfer button once.