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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. Describe how you configure SIP URI functionality.
Reroute when here is WAN congestion.

Max-dn|max-ephone|ip source-address
Service Parameters --> Mobile Voice Access Number

2. What are the commands to create the L3 routing interface for VLANS (SVI)?
#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
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
Auto Call Pickup Enabled
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

3. Where can you assign the AAR Group?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

CUCM Service Parameters --> Automated Alternate Routing Enable --> True

4. On an MGCP GW - how could you see the primary and backup CUCM servers?
When they are explicitly matched in a destination-pattern in a dial-peer.
Sh ccm-manager
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
Show ccm-manager

5. What commands are needed to configure the voice register pool in CME?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Bandwidth

6. What is the bit rate for a G.729 call excluding layer 2?
8kb/s
SIP Route Pattern over a SIP Trunk.
#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
(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

7. How do you verify that NTP is working on the CUCM server?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
At the CLI: utils ntp status
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. 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
...
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 --> Block OffNet To OffNet Transfer --> True
Single Number Reach (Mobile Connect)

9. 'How do you inform a SIP phone of NTP information?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#after-hours block pattern
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group

10. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
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

11. What are the commands to configure a T1/E1 PRI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
(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
Bottom up - to prevent glare.
Assign SIP Dial Rules

12. How can you confirm the MGCP GW is registered to CUCM - in IOS?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Sh ccm-manager
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

13. What are the basic ephone-dn and ephone commands?
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
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
To enable two-stage dialing.

14. How would you enable security on a GK?
Dial-peers
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
...
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

15. 'If you're not getting a DHCP address from CUCM what then?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Bandwidth
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.
Dtmf-relay h245-alpha

16. What CUCM services should you activate?
Re-enter the mgcp bind control and mgcp bind media commands.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
1 ... this is not optional!
Service Parameters --> Mobile Voice Access Number

17. How do you configure SRST?
Mobile Connect
The name configuration field in ephone-dn and voice register dn
Call-manager-fallback or telephony-service mode SRST
On CUCM it's identical to adding an H323 GW.

18. What terminology translates to SRST?
Debug ephone moh
Top Down means that channel 1 will be the first channel used to place outgoing calls.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Reroute when there is a WAN Outage.

19. How do you disable KPML?
Reroute when here is WAN congestion.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Assign SIP Dial Rules
Debug isdn q931

20. With the gw-priority command - does higher or lower priority take precedence?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Configure it on the route group through the route list - then it will be local to the route list.
Higher
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

21. What does an H323 GW require that MGCP GWs do not?
Dial-peers
Assign SIP Dial Rules
Debug isdn q931
At the CLI: utils ntp status

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

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23. What are the commands to create vlans on an ESW?
Ccm-manager music-on-hold
CUCM OS Administration Settings --> NTP Servers
Bottom up - to prevent glare.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

24. What are the steps to integrate CUPS with CUCM?
When configuring TEHO.
Reroute when here is WAN congestion.
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]

25. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
Master/Slave relationship. CUCM controls it.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
#voice service voip| #no supplementary-service h225-notify cid-update
Assign SIP Dial Rules

26. What would force you to use telephony-service to configure SRST?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Apply it to the ephone.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

27. How do you enable AAR?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
SIP Dial Rules
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

28. How do you use an ephone template?
Apply it to the ephone.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
IP Voice Media Streaming App
#after-hours block pattern

29. What are the basic SCCP Commands fro telephony-service in CUCME?
Allows you to transfer by only pressing the Transfer button once.
CUCM Service Parameters --> Call Park Reversion Timer
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Apply it to the ephone.

30. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
SIP Dial Rules
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

31. What are the steps to configure Single Number Reach and Mobile Voice Access?
Reroute when there is a WAN Outage.
At the CLI: utils ntp status
When configuring TEHO.

32. How do you prevent toll fraud on CUCM?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Debug isdn q931

33. How do you configure a SIP Trunk? (router side)
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
When they are explicitly matched in a destination-pattern in a dial-peer.
(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

34. How do you enable Extension Mobility for a device in CME?
TRUE
Assign a logout-profile to the ephone.
#after-hours block pattern
Device Pool Locations

35. 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.
Debug isdn q931
Call Simulator. You can use to validate path from router to the PSTN.
(config)#sh cdp neigh detail

36. 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!
In CUCM - configure CFUR to point to it's E164 number.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
...

37. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
Ccm-manager music-on-hold
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

38. SNR is also known as?
On CUCM it's identical to adding an H323 GW.
Mobile Connect
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.
#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

39. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Bottom up - to prevent glare.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Ccm-manager music-on-hold
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

40. How do you prioritize route groups?
#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
Put them in a route list.
IP Voice Media Streaming App
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

41. When a CUCM device dials a number - what happens?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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 .)
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
(config)#voice register dialplan

42. 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?
TRUE
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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

43. 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
Outbound dial-peers
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
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.

44. What CM Service needs to be start in Serviceability for MOH to work?
Apply voice-class codec
Service Parameters --> Mobile Voice Access Number
IP Voice Media Streaming App
(config)#voice register dialplan

45. When do you use translate called? Translate calling?
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
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

46. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
(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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

47. What is the Enable Enterprise Feature Access Service Parameter used for?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
SIP Dial Rules
To enable two-stage dialing.

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

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49. How do you verify where MOH is being served up from?

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50. What's the best way to perform digit manipulation on a route group?
Debug ephone moh
At the CLI: utils ntp status
Configure it on the route group through the route list - then it will be local to the route list.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.