Test your basic knowledge |

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 CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Ccm-manager music-on-hold
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Mobile Voice Access

2. How do you configure phone ports on an ESW?
#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
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
Service Parameter --> Block OffNet To OffNet Transfer --> True
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

3. What terminology translates to SRST?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Reroute when there is a WAN Outage.

#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

4. How do you create a trunk on the switch side?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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

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

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6. How do you configure SRST?
Call-manager-fallback or telephony-service mode SRST
...
(config)#voice register dialplan
Max-dn|max-ephone|ip source-address

7. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
#voice service voip| #no supplementary-service h225-notify cid-update
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

8. Where can you assign the AAR Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Apply it to the ephone.
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
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

9. What are the commands to configure a SIP phone in CUCME?
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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
(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
(config)#sh cdp neigh detail

10. How do you see the details of calls coming in and out of the PRI?

Debug isdn q931
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
Bandwidth

11. What's the best way to do digit manipulation on an IOS gateway?
Show ccm-manager
voice translation-profile|and|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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

12. What does rule 1 /^.*(....$)/ /1/ do?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
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>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Matches any length dialed number and truncates it to 4 digits.

13. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?

IP Voice Media Streaming App
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

14. Calls coming from CUCM to PSTN need what?
Outbound dial-peers
1 ... this is not optional!
SIP Route Pattern over a SIP Trunk.
CUCM OS Administration Settings --> NTP Servers

15. What are the commands to configure a T1/E1 PRI?
(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
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
sh ephone reg|and|debug voip dialpeer

16. What are the commands to configure a MGCP Gateway? (router)
24kb/s
Service Parameters --> Mobile Voice Access Number
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
#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

17. What is Phone NTP Reference used for?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
To notify SIP Phones of NTP
#voice service voip| #no supplementary-service h225-notify cid-update

18. How do you use an ephone template?
CUCM OS Administration Settings --> NTP Servers
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.
Apply it to the ephone.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

19. What does ccm-manager config server [IP]</ip> do?
Mobile Connect
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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
Automatically configures the MGCP GW for you.

20. How do you see multicast packets being sent?
Debug ephone moh
Bottom up - to prevent glare.
(config)#voice register dialplan
CUCM OS Administration Settings --> NTP Servers

21. 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
Phone number followed by domain name.|i.e. 3006@ipxcme.com
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

22. How do you place SCCP and SIP phones into a single huntgroup?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
(config)#sh cdp neigh detail
Sh ip rsvp reservation||sh sccp connections
Via the voice hunt-group parallel command

23. How do you verify that NTP is working on the CUCM server?
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
#test voice translation rule 1 <input to test>
At the CLI: utils ntp status
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

24. Privacy is enabled system-wide in CUCM by default. (T or F)
Configure it on the route group through the route list - then it will be local to the route list.
TRUE
The Called/Calling Transformations are superceded.
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

25. Which takes precedence Device Locations or Device Pool Locations?
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||#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
IP Voice Media Streaming App
Device Pool Locations

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

27. What is the bit rate for a G.729 call excluding layer 2?
8kb/s
Mobile Voice Access
(config)#voice register dialplan
Configure it on the route group through the route list - then it will be local to the route list.

28. What are the basic ephone-dn and ephone commands?
In the CUCM 7.0.1 Release Notes ... search for restore.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
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
#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

29. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
#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
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

30. How is NTP sych setup in CUCM?
CUCM OS Administration Settings --> NTP Servers
On CUCM it's identical to adding an H323 GW.
It's best to strip digits at the voice port.
To enable two-stage dialing.

31. How do you configure CUBE?

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32. 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
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.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

33. How do you configure CUCM redundancy on an H323 gateway?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Master/Slave relationship. CUCM controls it.
#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

34. What are the commands to configure an H323 GW?
#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
8kb/s
TRUE
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

35. What are the commands to create the L3 routing interface for VLANS (SVI)?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Apply it to the ephone.
Service Parameters --> Mobile Voice Access Number
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

36. How do you prevent toll fraud on CUCM?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#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
#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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

37. '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
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
The name configuration field in ephone-dn and voice register dn
#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
...

38. Describe the relationship between route patterns and end devices.
Ccm-manager music-on-hold
On CUCM it's identical to adding an H323 GW.
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.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

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

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40. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
24kb/s
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
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. What terminology translates to AAR?
24kb/s
Call-manager-fallback or telephony-service mode SRST
Reroute when here is WAN congestion.
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

42. How do you enable Extension Mobility for a device in CME?
The Called/Calling Transformations are superceded.
Debug isdn q931
Assign a logout-profile to the ephone.
Sh ccm-manager

43. What is the Service Parameter to allow the phone that is picking ip to auto answer?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Auto Call Pickup Enabled
(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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

44. How would you enable security on a GK?
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
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
#voice service voip| #no supplementary-service h225-notify cid-update
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

45. On an H323 GW - how do you adjust the timers for redundancy hunting?
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
(config)#sh cdp neigh detail
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Apply it to the ephone.

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

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47. How do do configure TEHO?
Matches any length dialed number and truncates it to 4 digits.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
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
Assign a logout-profile to the ephone.

48. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
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
Ccm-manager music-on-hold
Sh ccm-manager

49. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
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 .)
CUCM Service Parameters --> Call Park Reversion Timer
Via the voice hunt-group parallel command
SIP Dial Rules

50. What is the Enable Enterprise Feature Access Service Parameter used for?
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
To enable two-stage dialing.
CUCM OS Administration Settings --> NTP Servers
Auto Call Pickup Enabled