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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. What are the basic ephone-dn and ephone commands?
...
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.
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
Via the voice hunt-group parallel command

2. How do you ensure that G.711 only is used?
'Use before the ... so XXXX
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Reroute when there is a WAN Outage.
Outbound dial-peers

3. How do you allow the Calling Name to be sent to the PSTN on a router?
Higher
Auto Call Pickup Enabled
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

4. How do you configure AAR?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Service Parameter --> Block OffNet To OffNet Transfer --> True
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

5. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
SIP Dial Rules
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

6. 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!!!
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
Assign SIP Dial Rules
'Use before the ... so XXXX

7. 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?
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Dial-peers
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called 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 ....

8. Is the order of the MRGs in an MRGL significant?
(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
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Outbound dial-peers
Show ccm-manager

9. Privacy is enabled system-wide in CUCM by default. (T or F)
The name configuration field in ephone-dn and voice register dn
In the CUCM 7.0.1 Release Notes ... search for restore.
TRUE
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

10. What are the commands to configure a MGCP Gateway? (router)
#voice service voip| #no supplementary-service h225-notify cid-update
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.
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
In the CUCM 7.0.1 Release Notes ... search for restore.

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

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12. How do you enable Extension Mobility for a device in CME?
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
Via the voice hunt-group parallel command
Automatically configures the MGCP GW for you.
Assign a logout-profile to the ephone.

13. How do you test a Voice Translation Rule?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Bandwidth
#test voice translation rule 1 <input to test>
Max-dn|max-ephone|ip source-address

14. How do you setup AutoRegistration in CUCM?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
In the CUCM 7.0.1 Release Notes ... search for restore.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
...

15. How do you configure phone ports on a 3750?
IP Voice Media Streaming App
Automatically configures the MGCP GW for you.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

16. How do you prioritize route groups?
Sends the Calling Name.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Put them in a route list.

17. How do you set the Call Park Reversion Timer?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
CUCM Service Parameters --> Call Park Reversion Timer
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

18. When setting up SIP URI where do you configure the CUCM's domain name?'
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Higher
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 ....
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

19. What are the commands to create vlans on an ESW?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
On CUCM it's identical to adding an H323 GW.
Debug isdn q931

20. When a CUCM device dials a number - what happens?
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 .)
#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
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Reroute when here is WAN congestion.

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

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22. What is call-forward pattern used for?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Precede the # with a > ... so 9011*>#
(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
Call forwarding between voip to voip (when CUBE is in play)

23. How do you configure CUCM redundancy on an H323 gateway?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
#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
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

24. 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.
Service Parameter --> Block OffNet To OffNet Transfer --> True
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Matches any length dialed number and truncates it to 4 digits.

25. '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
Via the voice hunt-group parallel command
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.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
...

26. In CME Where is the Calling Name derived from?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
The name configuration field in ephone-dn and voice register dn
SIP Dial Rules

27. What does ccm-manager config server [IP]</ip> do?
When configuring TEHO.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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

28. What are the commands to configure NTP in IOS?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Mobile Voice Access
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

29. 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?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
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)
Sh ccm-manager
Debug ephone moh

30. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
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.
Mobile Voice Access
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
Reroute when here is WAN congestion.

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

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32. What are the commands to manually configure an MGCP gateway?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
To enable two-stage dialing.
#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

33. Where can you assign the AAR Group?
(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
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
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

34. What would force you to use telephony-service to configure SRST?
Allows you to transfer by only pressing the Transfer button once.
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.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

35. 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.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
sh ephone reg|and|debug voip dialpeer
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

36. When do you use translate called? Translate calling?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Apply voice-class codec
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

37. How do you support multiple codecs on a dialpeer?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Service Parameters --> Mobile Voice Access Number
Apply voice-class codec
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

38. How do you place SCCP and SIP phones into a single huntgroup?
Auto Call Pickup Enabled
Via the voice hunt-group parallel command
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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. How do you configure CUBE?

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40. What is the bit rate for a G.729 call excluding layer 2?
Call forwarding between voip to voip (when CUBE is in play)
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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
8kb/s

41. How do you create a trunk on the router side?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Top Down means that channel 1 will be the first channel used to place outgoing calls.
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
...

42. If you have an H323 Gateway at a siet where the phones are controlled by CUCM - what do you need from a dial-peer perspective?
Reroute when there is a WAN Outage.
Sh ccm-manager
(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
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.

43. How would you enable security on a GK?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
8kb/s
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
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

44. What are the commands to configure an H323 GW?
Outbound dial-peers
Re-enter the mgcp bind control and mgcp bind media commands.
#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
Sh ip rsvp reservation||sh sccp connections

45. What is SIP URI?
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Ccm-manager music-on-hold
Debug isdn q931
Phone number followed by domain name.|i.e. 3006@ipxcme.com

46. How do you use an ephone template?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Apply it to the ephone.

47. How do you configure DHCP in IOS?
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
(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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

48. What are the steps to integrate CUPS with CUCM?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
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.
To enable two-stage dialing.
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

49. What are the commands to configure a T1/E1 PRI?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Sh ccm-manager
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
(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

50. 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)
CUCM OS Administration Settings --> NTP Servers
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Call Simulator. You can use to validate path from router to the PSTN.