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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 does rule 1 /^.*(....$)/ /1/ do?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Matches any length dialed number and truncates it to 4 digits.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
#test voice translation rule 1 <input to test>

2. How do you test a Voice Translation Rule?
...
#test voice translation rule 1 <input to test>
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
Via the voice hunt-group parallel command

3. How do you disable KPML?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
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 .)
Assign SIP Dial Rules
Sh ip rsvp reservation||sh sccp connections

4. What are the commands to configure an H323 GW?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
#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
Call-manager-fallback or telephony-service mode SRST
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

5. Where is it best to manipulate digits for inbound calls?

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6. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
...
#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

7. What must you do for a BACD script to work on a CME router?
It's best to strip digits at the voice port.
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
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

8. 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?
In the CUCM 7.0.1 Release Notes ... search for restore.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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)

9. Maximum Wait Time for Desk Pickup?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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
#voice service voip| #no supplementary-service h225-notify cid-update

10. What's the best way to perform digit manipulation on a route group?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
IP Voice Media Streaming App

Configure it on the route group through the route list - then it will be local to the route list.

11. 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?
#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
Dtmf-relay h245-alpha
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.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

12. How do you allow H323 calls to be preserved should the primary H323 GW fail?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
#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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

13. What are the commands to create the L3 routing interface for VLANS (SVI)?

#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
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
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

14. What's the best way to do digit manipulation on an IOS gateway?
Allows you to transfer by only pressing the Transfer button once.
Bottom up - to prevent glare.
voice translation-profile|and|voice translation-rule
Debug isdn q931

15. How do you support multiple codecs on a dialpeer?
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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
When they are explicitly matched in a destination-pattern in a dial-peer.
Apply voice-class codec

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

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17. How do you set the Call Park Reversion Timer?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Bottom up - to prevent glare.
CUCM Service Parameters --> Call Park Reversion Timer
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.

18. How do you allow the Calling Name to be sent to the PSTN on a router?
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Via the voice hunt-group parallel command

19. Where do you use VIA zone?
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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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

20. Privacy is enabled system-wide in CUCM by default. (T or F)
TRUE
#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
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
In the CUCM 7.0.1 Release Notes ... search for restore.

21. How do you setup AutoRegistration in CUCM?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Dtmf-relay h245-alpha
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

22. How do you block an external call from being transferred back out to the pstn by an internal user?
(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
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
Service Parameter --> Block OffNet To OffNet Transfer --> True
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 ....

23. What terminology translates to AAR?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Reroute when here is WAN congestion.

24. What would force you to use telephony-service to configure SRST?
Auto Call Pickup Enabled
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
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

25. 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
(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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
IP Voice Media Streaming App

26. Does CUCM support RSVP natively?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
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)

27. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Put them in a route list.

Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
To enable two-stage dialing.

28. What should you configure before entering auto qos?
Bandwidth
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Reroute when there is a WAN Outage.
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

29. In Gatekeeper CAC how do you restrict a specific endpoint?
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
Single Number Reach (Mobile Connect)
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

30. How would you enable security on a GK?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
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

31. How do you use the # as a string terminator within a SIP Dial Rule?
8kb/s
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
Precede the # with a > ... so 9011*>#
...

32. How much bandwidth does a G.729 call including layer 3 require?
24kb/s
Auto Call Pickup Enabled
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
TRUE

33. What is the full E164 format?
(config)#voice register dialplan
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Reroute when here is WAN congestion.

34. What is Mobile Voice Access?
Via the voice hunt-group parallel command
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
8kb/s
Single Number Reach (Mobile Connect)

35. When do you do digit manipulation at the route pattern as opposed to the route list?
...
When multiple sites use the same route pattern - do your digit manipulation on a route list.
(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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

36. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
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.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
'Service Parameters --> Auto Answer Timer

37. What types of digit manipulation can you perform at the route pattern?
SIP Dial Rules
Need to Know||Anytime you have an external call - it needs to match on a 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!
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

38. How do you place SCCP and SIP phones into a single huntgroup?
Via the voice hunt-group parallel command
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
(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
When configuring TEHO.

39. What are the 3 mandatory commands within call-manager-fallback?
Auto Call Pickup Enabled
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Max-dn|max-ephone|ip source-address
At the CLI: utils ntp status

40. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Max-dn|max-ephone|ip source-address

41. How is NTP sych setup in CUCM?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
...
CUCM OS Administration Settings --> NTP Servers
#voice service voip| #no supplementary-service h225-notify cid-update

42. 'If you want to make changes to any softkeys where do you do it?
On CUCM it's identical to adding an H323 GW.
Master/Slave relationship. CUCM controls it.
#test voice translation rule 1 <input to test>
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

43. What are the commands to configure a MGCP Gateway? (router)
Allows you to transfer by only pressing the Transfer button once.
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
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
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

44. When using drop-through-option What is the max number of huntgroups?
...
...
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
1 ... this is not optional!

45. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
#after-hours block pattern
24kb/s
IP Voice Media Streaming App

46. How do you see multicast packets being sent?
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
Debug ephone moh
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

47. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Auto Call Pickup Enabled
Configure it on the route group through the route list - then it will be local to the route list.
Sh ccm-manager
sh ephone reg|and|debug voip dialpeer

48. How do you configure AAR?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
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.
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
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.

49. What does ccm-manager config server [IP]</ip> do?
Automatically configures the MGCP GW for you.
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
#test voice translation rule 1 <input to test>
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

50. What does an H323 GW require that MGCP GWs do not?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
sh ephone reg|and|debug voip dialpeer
Dial-peers
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable