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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 can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Outbound dial-peers
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
(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
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.

2. 'If you're not getting a DHCP address from CUCM what then?
Single Number Reach (Mobile Connect)
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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Ccm-manager music-on-hold

3. What does ccm-manager config server [IP]</ip> do?
Call Simulator. You can use to validate path from router to the PSTN.
Automatically configures the MGCP GW for you.

On CUCM it's identical to adding an H323 GW.

4. What are the commands to manually configure an MGCP gateway?
#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
IP Voice Media Streaming App
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
To notify SIP Phones of NTP

5. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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>|| Block Offnet to Offnet Transfer - Set to True

6. Is the + character supported on a VOIP dial-peer?

7. What are the commands to configure a MGCP Gateway? (router)
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.
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
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

8. 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
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.
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 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

9. 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 os truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
...
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

10. How do you configure a gateway to register with gatekeeper?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
#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
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

11. What types of digit manipulation can you perform at the route pattern?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

12. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
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
Ccm-manager music-on-hold
#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
Debug isdn q931

13. What is the Enable Enterprise Feature Access Service Parameter used for?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
#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
Device Pool Locations
To enable two-stage dialing.

14. Calls coming from CUCM to PSTN need what?
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
Master/Slave relationship. CUCM controls it.
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 ....
Outbound dial-peers

15. Where do you use VIA zone?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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
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
Service Parameters --> Mobile Voice Access Number

16. Which takes precedence Device Locations or Device Pool Locations?
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
Device Pool Locations
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
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

17. What is call-forward pattern used for?
Call forwarding between voip to voip (when CUBE is in play)
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Re-enter the mgcp bind control and mgcp bind media commands.
#test voice translation rule 1 <input to test>

18. Is the order of the MRGs in an MRGL significant?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
IP Voice Media Streaming App
Reroute when here is WAN congestion.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

19. When can you not use a Standard Local Route Group?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
When configuring TEHO.

20. '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.
(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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

21. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Automatically configures the MGCP GW for you.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
SIP Route Pattern over a SIP Trunk.

22. How do you set up redundancy on outbound dial-peers on an H323 gateway?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Allows you to transfer by only pressing the Transfer button once.
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
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

23. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
Mobile Voice Access
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
voice register pool|and|voice register dn

24. How do you set the inter-digit timeout for SIP phones in CME?
(config)#voice register dialplan
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)
To enable two-stage dialing.
Dtmf-relay h245-alpha

25. What is the Service Parameter to allow the phone that is picking ip to auto answer?

voice register pool|and|voice register dn
#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
Auto Call Pickup Enabled

26. What is Phone NTP Reference used for?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
...
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
To notify SIP Phones of NTP

27. How do you configure CUBE?

28. SNR is also known as?
#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
Mobile Connect
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Apply it to the ephone.

29. When do you do digit manipulation at the route pattern as opposed to the route list?

Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

30. Describe the relationship between route patterns and end devices.
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 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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

31. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
CUCM Service Parameters --> Call Park Reversion Timer
Higher
When multiple sites use the same route pattern - do your digit manipulation on a route list.

32. On an MGCP GW - how could you see the primary and backup CUCM servers?
Call Simulator. You can use to validate path from router to the PSTN.
Show ccm-manager
Top Down means that channel 1 will be the first channel used to place outgoing calls.
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

33. How do you configure SRST?
Call-manager-fallback or telephony-service mode SRST
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
Call forwarding between voip to voip (when CUBE is in play)
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

34. Describe how you configure SIP URI functionality.
The name configuration field in ephone-dn and voice register dn
Max-dn|max-ephone|ip source-address

In CUCM - configure CFUR to point to it's E164 number.

35. How do you configure phone ports on an ESW?
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
#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
(config)#voice register dialplan
Call Simulator. You can use to validate path from router to the PSTN.

36. How do you prevent toll fraud on CUCM?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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
Sh ip rsvp reservation||sh sccp connections

37. What are the commands to configure SRST in fallback?
(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
#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
Max-dn|max-ephone|ip source-address

38. Name 2 commands to verify RSVP functionality.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Sh ip rsvp reservation||sh sccp connections
(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

39. What must you do for a BACD script to work on a CME router?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
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
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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

40. How do you configure phone ports on a 3750?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Device Pool Locations
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
...

41. '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
voice register pool|and|voice register dn
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
...

42. How do you disable KPML?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Bottom up - to prevent glare.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Assign SIP Dial Rules

43. What does rule 1 /^.*(....$)/ /1/ do?
#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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Device Pool Locations
Matches any length dialed number and truncates it to 4 digits.

44. What terminology translates to AAR?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Reroute when here is WAN congestion.
Apply voice-class codec

45. How do you use the # as a string terminator within a SIP Dial Rule?
It's best to strip digits at the voice port.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Precede the # with a > ... so 9011*>#
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

46. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
#after-hours block pattern
CUCM Service Parameters --> Call Park Reversion Timer
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Ccm-manager music-on-hold

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

48. Two useful troubleshooting commands for CUCME?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
#voice service voip| #no supplementary-service h225-notify cid-update
sh ephone reg|and|debug voip dialpeer
Service Parameter --> Block OffNet To OffNet Transfer --> True

49. In Gatekeeper CAC how do you restrict a specific endpoint?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Call forwarding between voip to voip (when CUBE is in play)
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Apply voice-class codec

50. How do you create a trunk on the switch side?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
(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
When they are explicitly matched in a destination-pattern in a dial-peer.
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