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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 get around relying on DNS for your CUCMs?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Re-enter the mgcp bind control and mgcp bind media commands.
24kb/s
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

2. What types of digit manipulation can you perform at the route pattern?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Bandwidth
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
#after-hours block pattern

3. Is the order of the MRGs in an MRGL significant?
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.
8kb/s
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

4. On the RDP What is the CSS used for?
Mobile Voice Access
Automatically configures the MGCP GW for you.
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.
The name configuration field in ephone-dn and voice register dn

5. How do you prioritize route groups?
Put them in a route list.
In the CUCM 7.0.1 Release Notes ... search for restore.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

6. 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.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
(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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

7. How do you prevent H323 caller-id updates to CUCM
#voice service voip| #no supplementary-service h225-notify cid-update
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
voice translation-profile|and|voice translation-rule
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

8. How can you confirm the MGCP GW is registered to CUCM - in IOS?
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
Via the voice hunt-group parallel command
Sh ccm-manager

9. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
24kb/s
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Call Simulator. You can use to validate path from router to the PSTN.

10. How do you set the Call Park Reversion Timer?
Max-dn|max-ephone|ip source-address
CUCM Service Parameters --> Call Park Reversion Timer
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
SIP Route Pattern over a SIP Trunk.

11. SNR is also known as?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Mobile Connect
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

12. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.

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13. When do you do digit manipulation at the route pattern as opposed to the route list?
Assign a logout-profile to the ephone.
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)
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Show ccm-manager

14. How do you configure AAR?
#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
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
...

15. What is SIP URI?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Phone number followed by domain name.|i.e. 3006@ipxcme.com

16. How do you enable AAR system wide?
#voice service voip| #no supplementary-service h225-notify cid-update
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Assign a logout-profile to the ephone.

17. What is call-forward pattern used for?
Call forwarding between voip to voip (when CUBE is in play)
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
Max-dn|max-ephone|ip source-address
At the CLI: utils ntp status

18. 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
Dial-peers
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
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

19. What do you need to do to activate the CME GUI?
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
Re-enter the mgcp bind control and mgcp bind media commands.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

20. How do you block an external call from being transferred back out to the pstn by an internal user?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Show ccm-manager
Precede the # with a > ... so 9011*>#
Reroute when here is WAN congestion.

21. How do you set up redundancy on outbound dial-peers on an H323 gateway?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
When they are explicitly matched in a destination-pattern in a dial-peer.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
When multiple sites use the same route pattern - do your digit manipulation on a route list.

22. How is NTP sych setup in CUCM?
Service Parameters --> Mobile Voice Access Number
Dtmf-relay h245-alpha
CUCM OS Administration Settings --> NTP Servers
TRUE

23. What are the commands to configure an H323 GW?
Bandwidth
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
#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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

24. Describe the relationship between route patterns and end devices.
#voice service voip| #no supplementary-service h225-notify cid-update
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.
Sh ip rsvp reservation||sh sccp connections
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.

25. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
SIP Route Pattern over a SIP Trunk.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

26. Calls coming from CUCM to PSTN need what?
Outbound dial-peers
24kb/s
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Debug ephone moh

27. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
Sends the Calling Name.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
The Called/Calling Transformations are superceded.

28. What does an H323 GW require that MGCP GWs do not?
Re-enter the mgcp bind control and mgcp bind media commands.
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
Dial-peers
To enable two-stage dialing.

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

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

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31. What are the base telephony-service commands for CME?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
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

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

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33. If the PSTN is presenting on channel 1 - should you configure CUCM to search 'top down' or 'bottom up'?
Higher
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Bottom up - to prevent glare.

34. How do you change modes in voice register global?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Via the voice hunt-group parallel command
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

35. When are digits stripped in a gateway?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Via the voice hunt-group parallel command
When they are explicitly matched in a destination-pattern in a dial-peer.

36. How do you configure CUCM redundancy on an H323 gateway?
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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
#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

37. Two useful troubleshooting commands for CUCME?
The Called/Calling Transformations are superceded.
sh ephone reg|and|debug voip dialpeer
At the CLI: utils ntp status
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

38. What is CSIM?
Call Simulator. You can use to validate path from router to the PSTN.
Matches any length dialed number and truncates it to 4 digits.
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.

39. Where is it best to manipulate digits for inbound calls?

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40. How do you use an ephone template?
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
CUCM Service Parameters --> Call Park Reversion Timer
Apply it to the ephone.

41. How do you allow the Calling Name to be sent to the PSTN on a router?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Mobile Connect
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

42. What does the Transfer On-hook Enabled Service Parameter do?
Allows you to transfer by only pressing the Transfer button once.
Put them in a route list.
'Service Parameters --> Auto Answer Timer
Service Parameters --> Mobile Voice Access Number

43. With the gw-priority command - does higher or lower priority take precedence?
(config)#sh cdp neigh detail
Higher
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Bottom up - to prevent glare.

44. What's the best way to perform digit manipulation on a route group?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
8kb/s
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Configure it on the route group through the route list - then it will be local to the route list.

45. 'If you're not getting a DHCP address from CUCM what then?
#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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

46. On the RDP What is the Rerouting CSS used for?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Single Number Reach (Mobile Connect)
Debug ephone moh
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

47. How do you ensure that G.711 only is used?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Re-enter the mgcp bind control and mgcp bind media commands.

48. How do you test a Voice Translation Rule?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
'Use before the ... so XXXX
Master/Slave relationship. CUCM controls it.
#test voice translation rule 1 <input to test>

49. How do you disable KPML?

Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Assign SIP Dial Rules
Debug isdn q931

50. What does rule 1 /^.*(....$)/ /1/ do?
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 ....
Matches any length dialed number and truncates it to 4 digits.
8kb/s
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False