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CCIE Voice Test

Instructions:

Answer 50 questions in 15 minutes.
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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. What should you configure before entering auto qos?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Bandwidth
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

2. How do you configure CUCM redundancy on an H323 gateway?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
'Service Parameters --> Auto Answer Timer
#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

3. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
When they are explicitly matched in a destination-pattern in a dial-peer.
The Called/Calling Transformations are superceded.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
When multiple sites use the same route pattern - do your digit manipulation on a route list.

4. 'If you're not getting a DHCP address from CUCM what then?

TRUE
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

5. What is the bit rate for a G.729 call excluding layer 2?
8kb/s
Call Simulator. You can use to validate path from router to the PSTN.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Sends the Calling Name.

6. 'How do you inform a SIP phone of NTP information?
(config)#sh cdp neigh detail
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
TRUE
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

7. How do you set the Call Park Reversion Timer?
CUCM Service Parameters --> Call Park Reversion Timer
(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

Matches any length dialed number and truncates it to 4 digits.

8. How do you enable AAR?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
The Called/Calling Transformations are superceded.
CUCM Service Parameters --> Call Park Reversion Timer
SERVICE PARAMETER> Automated Alternate Routing Enable > True

9. 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
When they are explicitly matched in a destination-pattern in a dial-peer.
Assign a logout-profile to the ephone.
Bandwidth

10. How do you configure phone ports on a 3750?
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.
Allows you to transfer by only pressing the Transfer button once.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

11. How do you allow H323 calls to be preserved should the primary H323 GW fail?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
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
Master/Slave relationship. CUCM controls it.

12. How do you prevent toll fraud on CME?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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 ....
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Device Pool Locations

13. What's the best way to perform digit manipulation on a route group?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
(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
Configure it on the route group through the route list - then it will be local to the route list.
CUCM Service Parameters --> Call Park Reversion Timer

14. Name 4 useful show commands for active calls.
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 ....
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
8kb/s
Automatically configures the MGCP GW for you.

15. When can you not use a Standard Local Route Group?
(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
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
When configuring TEHO.

16. What are the steps to integrate CUPS with CUCM?
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
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
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

17. 'If you want to make changes to any softkeys where do you do it?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Put them in a route list.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

18. What does the Transfer On-hook Enabled Service Parameter do?
Matches any length dialed number and truncates it to 4 digits.
Dial-peers
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Allows you to transfer by only pressing the Transfer button once.

19. What are two caveats to using the ccm-manager config server</ip> command?
TRUE
Bandwidth
(config)#sh cdp neigh detail

20. How do you disable KPML?
Assign SIP Dial Rules
When they are explicitly matched in a destination-pattern in a dial-peer.
Mobile Connect
Via the voice hunt-group parallel command

21. What is the Enable Enterprise Feature Access Service Parameter used for?
To enable two-stage dialing.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Bandwidth
Matches any length dialed number and truncates it to 4 digits.

22. How do you configure DHCP in IOS?
TRUE
#test voice translation rule 1 <input to test>
Precede the # with a > ... so 9011*>#
(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

23. What must you do for a BACD script to work on a CME router?
...
Dial-peers
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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

24. What are the commands to configure an H323 GW?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
'Service Parameters --> Auto Answer Timer
#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

25. How do you ensure that G.711 only is used?
Ccm-manager music-on-hold
Assign a logout-profile to the ephone.
When they are explicitly matched in a destination-pattern in a dial-peer.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

26. How do you set the inter-digit timeout for SIP phones in CME?
(config)#voice register dialplan
Mobile Voice Access
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
#test voice translation rule 1 <input to test>

27. What does rule 1 /^.*(....$)/ /1/ do?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
#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
Matches any length dialed number and truncates it to 4 digits.
Debug isdn q931

28. With the gw-priority command - does higher or lower priority take precedence?
Higher
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Ccm-manager music-on-hold
Single Number Reach (Mobile Connect)

29. What are the steps to configure Single Number Reach and Mobile Voice Access?

When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
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
#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

30. 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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

...

31. On an H323 GW - how do you adjust the timers for redundancy hunting?
Service Parameters --> Mobile Voice Access Number
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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)

32. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Re-enter the mgcp bind control and mgcp bind media commands.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
(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

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

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34. What is the full E164 format?
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 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
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
(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

35. Does CUCM support RSVP natively?
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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
TRUE
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

36. '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
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
#test voice translation rule 1 <input to test>
...
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

37. When do you use translate called? Translate calling?
The Called/Calling Transformations are superceded.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

38. 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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

39. How do you see multicast packets being sent?
At the CLI: utils ntp status
#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.
Debug ephone moh

40. 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.
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
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)
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

41. What types of digit manipulation can you perform at the route pattern?
Dial-peers
Assign SIP Dial Rules
Call forwarding between voip to voip (when CUBE is in play)
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

42. How do you enable AAR system wide?
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
#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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

43. What does Display-IE do?
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
Sends the Calling Name.
Debug isdn q931
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

44. When are digits stripped in a gateway?
Show ccm-manager
When they are explicitly matched in a destination-pattern in a dial-peer.
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
Assign SIP Dial Rules

45. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
SIP Route Pattern over a SIP Trunk.
Higher
Sends the Calling Name.
(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

46. How do you allow the Calling Name to be sent to the PSTN on a router?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Single Number Reach (Mobile Connect)
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Re-enter the mgcp bind control and mgcp bind media commands.

47. In Gatekeeper CAC how do you restrict a specific endpoint?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Allows you to transfer by only pressing the Transfer button once.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

48. How do you prioritize route groups?
Put them in a route list.
1 ... this is not optional!
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

49. 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)
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:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas
When configuring TEHO.

50. How do you prevent H323 caller-id updates to CUCM
Automatically configures the MGCP GW for you.
#voice service voip| #no supplementary-service h225-notify cid-update
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

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CCIE Voice Test

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