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 prevent toll fraud on CUCM?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
SIP Dial Rules
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
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

2. What would force you to use telephony-service to configure SRST?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
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 .)
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

3. What are two caveats to using the ccm-manager config server</ip> command?
Configure it on the route group through the route list - then it will be local to the route list.
CUCM OS Administration Settings --> NTP Servers

...

4. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
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
Bottom up - to prevent glare.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

5. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
...
SIP Route Pattern over a SIP Trunk.
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.

6. What are the commands to configure SIP phones in CME?
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
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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
(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

7. With the gw-priority command - does higher or lower priority take precedence?
Allows you to transfer by only pressing the Transfer button once.
#test voice translation rule 1 <input to test>
...
Higher

8. What does the Transfer On-hook Enabled Service Parameter do?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Allows you to transfer by only pressing the Transfer button once.
Bottom up - to prevent glare.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

9. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
To notify SIP Phones of NTP
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

sh ephone reg|and|debug voip dialpeer

10. 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?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Reroute when here is WAN congestion.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

11. What are the commands to configure a SIP phone in CUCME?
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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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

12. How do you ensure that G.711 only is used?
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
#voice service voip| #no supplementary-service h225-notify cid-update
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Debug isdn q931

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

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

14. What are the commands to configure NTP in IOS?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Configure it on the route group through the route list - then it will be local to the route list.
Service Parameter --> Block OffNet To OffNet Transfer --> True
Apply voice-class codec

15. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
In the CUCM 7.0.1 Release Notes ... search for restore.

16. How do you configure CUBE?

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

17. How do you configure DHCP in IOS?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
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
Call-manager-fallback or telephony-service mode SRST
(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

18. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
#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
sh ephone reg|and|debug voip dialpeer
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
8kb/s

19. What types of digit manipulation can you perform at the route pattern?
#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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Matches any length dialed number and truncates it to 4 digits.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

20. How do you allow H323 calls to be preserved should the primary H323 GW fail?
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
Outbound dial-peers
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

21. How do you prevent toll fraud on CME?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Service Parameter --> Block OffNet To OffNet Transfer --> True
Service Parameters --> Mobile Voice Access Number
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 ....

22. What is the bit rate for a G.729 call excluding layer 2?
8kb/s
Show ccm-manager
Assign SIP Dial Rules
Top Down means that channel 1 will be the first channel used to place outgoing calls.

23. Privacy is enabled system-wide in CUCM by default. (T or F)
Reroute when there is a WAN Outage.
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 .)
TRUE
Ccm-manager music-on-hold

24. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
(config)#voice register dialplan
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 .)
(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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

25. What must you do for a BACD script to work on a CME router?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

26. 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

27. How do you create a trunk on the router side?
Bottom up - to prevent glare.
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.
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
Max-dn|max-ephone|ip source-address

28. How do you allow the Calling Name to be sent to the PSTN on a router?
Max-dn|max-ephone|ip source-address
Sh ccm-manager
Auto Call Pickup Enabled
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

29. 'If you want to make changes to any softkeys where do you do it?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
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

30. 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
Assign a logout-profile to the ephone.
Dtmf-relay h245-alpha
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

31. How do you set up redundancy on outbound dial-peers on an H323 gateway?
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.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

32. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
Matches any length dialed number and truncates it to 4 digits.
SIP Route Pattern over a SIP Trunk.
SIP Dial Rules

33. When a CUCM device dials a number - what happens?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Assign a logout-profile to the ephone.
8kb/s
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 .)

34. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
IP Voice Media Streaming App
Ccm-manager music-on-hold
Apply it to the ephone.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

35. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Sh ccm-manager
...
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.
'Use before the ... so XXXX

36. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
(config)#sh cdp neigh detail
Precede the # with a > ... so 9011*>#
Auto Call Pickup Enabled

37. '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>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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.
Debug ephone moh
...

38. 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
When configuring TEHO.
Automatically configures the MGCP GW for you.
IP Voice Media Streaming App

39. How do you configure an MGCP GW? (router side)
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
In CUCM - configure CFUR to point to it's E164 number.
(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
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

40. What are the commands to create vlans on an ESW?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Show ccm-manager
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
voice translation-profile|and|voice translation-rule

41. What are the commands to configure a T1/E1 PRI?
In the CUCM 7.0.1 Release Notes ... search for restore.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Automatically configures the MGCP GW for you.
(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

42. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
(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
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Master/Slave relationship. CUCM controls it.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

43. How do you enable AAR system wide?
At the CLI: utils ntp status
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Top Down means that channel 1 will be the first channel used to place outgoing calls.

44. How do you create a trunk on the switch side?
When they are explicitly matched in a destination-pattern in a dial-peer.
CUCM Service Parameters --> Call Park Reversion Timer
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
When configuring TEHO.

45. How do you enable AAR?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
SERVICE PARAMETER> Automated Alternate Routing Enable > True
When multiple sites use the same route pattern - do your digit manipulation on a route list.
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

46. How do do configure TEHO?
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
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
8kb/s
...

47. On an H323 GW - how do you adjust the timers for redundancy hunting?
sh ephone reg|and|debug voip dialpeer
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.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

48. 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
...
Dial-peers
SIP Route Pattern over a SIP Trunk.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

49. 'How do you inform a SIP phone of NTP information?
Debug isdn q931
Service Parameter --> Block OffNet To OffNet Transfer --> True
On CUCM it's identical to adding an H323 GW.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

50. How is NTP sych setup in CUCM?
#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
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
CUCM OS Administration Settings --> NTP Servers
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